Title of Invention

MILLING HEAD FOR MILLING CHAMFERS

Abstract The invention relates to a milling head (1) for milling chamfers (50), especially for a mobile chamfer miller, comprising successive seats for blanking dies (3, 28, 31), said seats (6-8;23-26;31-33;37-40) having a position in which the blanking dies with a leading edge angle of between 40 and 75° operate respectively on average with a positive effective cutting angle of at least 6° and a clearance angle of at least 6°, and are provided for a border comprising blanking dies (3, 28, 41) with a staggered arrangement of the cutting edges (17), such that respectively only one cutting edge length of 15 mm, preferably 12 mm, at the most, is active. Said measures increase the cutting performance of the milling head. The reduced cutting edge length can be formed on a long blanking die (28, 41) instead of using a shorter blanking die, in such a way that the cutting edge (30, 43) is interrupted by cavities or other e.g. flat triangular recesses (29, 42) on the surface of the blanking die. The staggered arrangement is then comparatively small.
Full Text

Description
"Milling head for milling chamfers"
The invention relates to a milling head for milling
chamfers, in particular for a mobile chamfer mill, with
successive seats for cutting dies.
Chamfers have to be milled to a great extent on
components in order to prepare V- or X-weld seams, and
also as visible or protective chamfers. The chamfers
may lie on straight edges or on curved contour
profiles. Straight edges can be machined by means of
cylindrical milling heads. Curved contour profiles
require conical milling heads. Since the width of the
chamfers required is, as a rule, at most 5 0 mm, work
can be carried out with cutting dies of such a length.
The object on which the invention is based is to
increase the cutting power of the milling head.
According to the invention, this purpose is achieved in
that
said seats
have a position in which the cutting dies provided,
which have a wedge angle of 4 0-75°, in each case
operate on average with a positive rake angle of at
least 6° and with a clearance angle of at least 6°,
and, for a fitting with cutting dies in an offset
arrangement of the cutting edges, are provided in such
a way that in each case only one cutting edge length,
which amounts at most to 70% of the overall cutting
edge length required according to the chamfer width, is
effective.
The first measure results in favorable conditions for
the penetration of the cutting dies into the material.
The cutting dies cut in relatively sharply. The second

measure is based on the recognition that, irrespective
of the possibility, existing in chamfer milling, of
covering the entire chamfer width with one cutting die
having a correspondingly long cutting edge, a division
into smaller cutting edges arranged so as to be offset
one behind the other is the better solution,
specifically, where appropriate, even when the overall
length of all the cutting edges on the milling head
becomes smaller than 3 0 mm. The shorter cutting edge
requires less pressure force and allows a more rapid
advance of the milling head. This advantage has an
effect particularly in the case of mobile chamfer
mills.
The shortened cutting edge length may be provided,
instead of by a shorter cutting die, also on a long
cutting die, specifically in that, on the latter, the
cutting edge is interrupted by depressions or other,
for example, flat-triangular, recesses on the surface
of the cutting die. The required offset is then only
comparatively low. The long cutting die has a
correspondingly good seat.
The measures may be taken on a conical and on a
cylindrical milling head.
The above particulars relating to the minimum rake
angle and minimum clearance angle refer to a conical
milling head, and, "on average", the two angles vary
here with the radius of the milling head. The
indication regarding the wedge angle relates to the
basic design of the cutting die without an additional
groove directly at the cutting edge.
As a rule, the effective cutting edge will be no longer
than 12 mm, at most 15 mm.
A better space utilization is possible on conical
milling heads owing to the offset arrangement. The
seats may be arranged here in two coaxial rows, of

which the outer row has twice as many seats as the
inner row.
However, seat designs may in each case also extend over
the entire generatrix of the conical or cylindrical
milling head and may have different seats for the
cutting dies, for example by means of differently
arranged threaded bores for a fastening screw of the
cutting die. Instead, particularly in the case of long
cutting dies with an interrupted cutting edge,
different dies arranged on identical seats or identical
dies with different cutting edges on their various
sides would also be possible, in such a way that, by a
succession of different dies or by an alternating
lateral orientation of the same dies, the cutting edges
can be arranged so as to be offset. Offset
possibilities could also be afforded by somewhat
eccentric bores in the dies for the fastening screws.
It would be appreciated that, in the former case, too,
all the seats are arranged on another generatrix of the
milling head, so that, as far as possible, only ever
one cutting edge is in engagement, and that, in the
offsets, overlaps remain which cause no burrs to occur
and/or remove burrs which have occurred.
Since, in the arrangement according to the invention,
the cutting dies must penetrate into the material at
least at one end of the cutting edge, the cutting edge
or cutting edges should in each case be angled
obliquely at their ends by means of a chamfer of the
cutting die. The angling should extend at least over
the depth of penetration of the cutting die.
The cutting power can be increased even further by
means of the advantageous refinements of the invention
which are given below:

The seats are preferably arranged such that the cutting
edges are oriented obliquely at a small angle with
respect to the generatrix of the milling head.
Consequently, the cutting edges penetrate into the
material, commencing on one side and not abruptly over
their entire length at the same time. The run of the
milling head becomes smoother.
When the cutting dies are arranged with their center
axis on a generatrix of a conical milling head, such an
oblique position is to some extent obtained
automatically. However, it may be further reinforced in
that the center axis of the cutting die is already set
somewhat obliquely.
On a cylindrical milling head, the center axis of the
cutting die must always be set obliquely when the
cutting edge is to be oriented obliquely.
The cutting dies provided are to be designed as
reversible dies and, on the whole, parallelepipedal
with two wide sides, and the seats are to have a
bearing surface for one wide side and a supporting
surface, transmitting the thrust force, for a narrow
side, or vice versa, and the reversible dies are to
have, on the side facing away from the supporting
surface, a groove forming two faces which, if
appropriate with the exception of any indentations
and/or protuberances of their margins forming the
cutting edges, have a continuously uniform cross
section mirror-symmetrical with respect to the center
plane of the reversible die, the two faces being planar
and preferably being at an angle of 8 0 to 15 0° to one
another or being concave correspondingly to a groove of
round cross section. Owing to the groove, the chips are
discharged quickly in an arc in such a way that they do
not impede the progressive cut.
Finally, in production terms, it is particularly
advantageous to have the refinement where the seats are

arranged in two coaxial rows on a conical or
cylindrical milling head and the milling head is
composed of two segments in each case having one of the
rows.
During the aggressive engagement of the cutting dies
which takes place according to the invention, the
milling head of the mobile chamfer mill must be held
and guided particularly firmly and reliably if an exact
uniform chamfer is to occur. Said milling head is
therefore preferably provided with a guide mounted in
its vicinity on the respective machine and taking the
form of stops which are assigned to the two surfaces of
the workpiece which delimit the chamfer.
Where a cylindrical milling head is concerned, the
stops may be sliding strips or strips provided with
rollers, or the like.
Where a conical milling head is concerned, preferably,
one stop is a disk preferably axially displaceable and
fixable in respect to the milling head and the other
stop is a freely rotatable roller which preferably has
only a narrow annular stop surface at its axial end
facing the milling head.
The drawings reproduce exemplary embodiments of the
invention.
Fig. 1 shows a first milling head in an isometric
illustration,
Fig. 2 shows a second milling head in an isometric
illustration,
Fig. 3 shows a third milling head in an isometric
illustration,
Fig. 4 shows a fourth milling head in an isometric
illustration,
Fig. 5 shows a fifth milling head in an isometric
illustration,

Fig. 6 shows the milling head according to Fig. 1 on a
milling machine and with a guide,
Fig. 7 shows the arrangement according to Fig. 6 in
engagement on a workpiece,
Fig. 8 shows the milling head according to Fig. 2 on a
milling machine and with a guide in engagement
on a workpiece, and
Fig. 9 shows a further milling head in an isometric
illustration.
Fig. 1 reveals a conical milling head 1 with six seat
designs 2 for a reversible die 3.
The seat designs 2 comprise in each case a bearing
surface 4 for one wide side of the on the whole
parallelepipedal reversible die 3, three threaded bores
5, to be used selectively, for a screw 16, by means of
which the reversible dies 3 are to be fastened on their
seat 6, 7 or 8, and a supporting surface 9, against
which in this case the possible face 12 lying opposite
the current face 10 on the flank 11 comes to bear.
A narrow free space 13 extends from the supporting
surface 9 along the adjoining possible face and around
its cutting edge.
On the other side, the reversible die 3 lies freely
against a setback 14 and a cut-out 15 of the milling
head 1.
The milling head 1 is thus far disclosed in the
unpublished DE 103 20 173 to which reference may
additionally be made.
The faces 10 and 12 are formed by approximately V-
shaped slots introduced into the respective narrow
sides of the reversible dies 3. These slots are
symmetrical with respect to the die center plane
parallel to the flank 11. Overall, therefore, the
reversible dies 3 may have four cutting edges formed by
the two V-slots.

The seats 6, 7 and 8, which receive the reversible dies
3 as a result of the fastening of these in the front,
middle and rear threaded bore 5, are offset. They
overlap one another, however, so that no burrs occur.
Only the, for example 10 mm long cutting edge 7 of a
reversible die 3 is ever in engagement in the material.
In view of the fact that the cutting edge also has to
penetrate into the martial at least at one end, it is
angled obliquely at 4 9 at the ends. The obliquity is
generated by chamfers 50 of the cutting die.
Since the seat designs 2 lie on a generatrix 18 of the
conical milling head and the cutting edge 17 runs
parallel to this generatrix, the cutting edge 17 is
oriented slightly obliquely with respect to the
generatrix 19 present at its end.
In fig. 2, the conditions of fig. 1 are transferred to
a cylindrical milling head 20.
Eight seat designs 21, each for a reversible die 3, are
formed on the cylinder casing. They each have four
threaded bores 22. They are identical in cross section
to the seat designs 2. The reversible dies 3 here
occupy four different seats 23, 24, 25 and 2G offset
relative to one another.
In fig. 3, six differently configured reversible dies
28 are mounted on the same conical milling head 27 as
in fig. 1, with the exception of the threaded bores.
The reversible dies 28 have essentially the same cross
section as the reversible dies 3, but more than twice
the length. In this case, however, their cutting edges
are interrupted by depressions 29 on the wide sides of
the reversible dies 28, so that they engage into the
material and can thus become effective on portions 30
only. The reversible dies 28 therefore need to be
offset only by an amount such that the portions 3 0 are
offset. Under these circumstances, in each case only

one threaded bore, correspondingly offset slightly from
seat to seat, is present for a screw 16. Three
different seats 31, 32 and 33 are set up.
The overall length of the portions 30 is only 10 mm.
The reversible dies 28 are held particularly firmly
over their greater length, thus resulting in high
stability and smooth running.
The conical milling head 34 in fig. 4 consists of two
segments 35 and 36 connected to one another, for
example, by screwing or shrink fitting. Eight seats 37,
3 8 are formed on the outer segment 3 5 and four seats
39, 4 0 are formed on the inner segment 36. The seats 3 8
and 40 are offset with respect to the seats 37 and 39.
The seats 39 and 40 are arranged, staggered, between
the seats 37 and 38. The reversible dies on the seats
3 8 in each case remove the burr occurring between the
two preceding reversible dies (seats 37, 39 and 37,
40) .
The reversible dies, designated by 41, have, in
principle, the same design as the reversible dies 28.
However, they are shorter and have only three
depressions 42 instead of four and, correspondingly,
four cutting edge portions 43 instead of five.
In fig. 5, a cylindrical milling head 44 consists of
two segments 4 5 and 4 6 screwed to one another. In each
case eight seat designs 47 and 48 are formed on the two
segments 45 and 46. The reversible dies 3 are fastened
alternately, using one threaded bore 5 and the other.
In this case, every second reversible die 3 projects
slightly onto the other segment 45 and 46, so that no
burr occurs here.
The seat designs 47 and 4 8 are orientated slightly
obliquely with respect to the generatrices of the
cylindrical milling head, specifically the seat designs
48 in the opposite direction to the seat designs 47.

Moreover, on all the milling heads 1, 20, 27, 34 and 44
described, the seats are set such that the rake angle
and the clearance angle in each case amount to about
12° (on average in the case of the conical milling
heads 1, 27 and 34).
When chamfers are to be milled, the width of which is
smaller than the cutting edge length, the offset may be
dispensed with if the same milling heads are used.
In fig. 6, the milling head 1 sits on a hand-operated
milling machine 51. It is mounted fixedly to the
rotation on the output shaft of the hand-operated
milling machine 51, said output shaft otherwise being
surrounded by a cylindrical sleeve 52.
A freely rotatable roller 54 is attached via a ball
bearing 53 to that end of the output shaft which
projects from the milling head 1.
A cuff 55, as a holder for an annular disk 56, is
seated on the sleeve 52 axially displaceably, but in
this case fixedly in terms of rotation, and so as to be
capable of being fixed in various axial positions.
The disk 56 and the roller 54 are assigned, in the way
evident from fig. 7, as stops to the surface 57 or the
lateral surface 58 of the workpiece and thus form a
guide. The roller 54 in this case bears against the
residual surface 60, remaining after the milling of the
chamfer 59, of the lateral surface 58. It is preferably
slightly conical or is provided at its upper end with a
flat collar, so that it touches only a narrow strip
along the edge 61 between the chamfer 59 and residual
surface 60. This avoids errors which could be caused by
oblique positions of the residual surface 60 or by a
burr on the lower edge of the latter.
It will be appreciated that the axis of the milling
head 1 is here held as far as possible perpendicularly
with respect to the surface 57 of the workpiece.

In fig. 8, the cylindrical milling head 20 sits on the
output shaft of the hand-operated milling machine,
designated by 62.
Two strips 63 and 64 are provided as stops forming a
guide. The milling head 20 projects with its axial end
into indentations 65 of the strips 63 and 64. The
strips 63 and 64 are connected firmly to the housing of
the hand-operated milling machine 62. They can be
brought into various angular positions correspondingly
to the angular position of the chamfer, designated here
by 66.
Fig. 9 shows a further milling head similar to the
milling head of fig. 3. The cutting edges of reversible
dies 70 here, however, are not interrupted solely by
depressions extending continuously over the die width,
but, inter alia, by marginal recesses 71 of trapezoidal
cross section. A bore for fastening the reversible die
7 0 in its seat is provided in each case between two
marginal recesses 71 lying opposite one another. The
milling head is connected to a guide bearing 72 forming
a spacer piece.
Set-back minor cutting edges with a specific clearance
angle could be formed by the marginal recesses 71. In
the case of pronounced depths of penetration of the
cutting edges, the minor cutting edges are employed. In
the embodiment shown, with a "negative" clearance
angle, the clearance angle surfaces are set up and thus
limit a deeper penetration of the cutting edges. By
suitable choice of the pocket depths and/or clearance
angles, these effects, important particularly for hand-
operated machines, can be set in a controlled way. The
machine consequently does not catch when work starts.
The edges of the marginal recesses are expediently
rounded by means of brushes. Continuous depressions may
serve as separating points in order to divide the
reversible dies.

I CLAIM
1. A milling head for milling chamfers, in particular for a mobile
chamfer mill, with successive seats for cutting dies, characterized in
that the seats (6-8; 23-26; 31-33; 37-40;) have a position in which
the cutting dies (3; 28; 31) provided, which have a wedge angle of
40-75°, in each case operate on average with a positive rake angle
of at least 6° and with a clearance angle of at least 6°, and, for a
fitting with cutting dies (3; 28; 41) in an offset arrangement of the
cutting edges, are provided in such a way that in each case only
one cutting edge length, which amounts at most to 70% of the
overall cutting edge length required according to the chamfer
width, is effective.
2. The milling head as claimed in claim 1, wherein an effective cutting
edge length of the cutting dies (3; 28; 41) provided of at most 30
mm, preferably at most 15 mm, in particular at most 12 mm.
3. The milling head as claimed in claim 1 or 2, wherein the cutting
edge or cutting edges (17) of the cutting dies (3; 41) provided is or
are angled obliquely (49) at its or their ends in each case by means
of a chamfer (50) of the cutting die.
4. The milling head as claimed in claim 1 or 2, wherein an
arrangement of the seats (47; 48) such that the cutting edges (17)
are oriented obliquely at a small angle with respect to the
generatrix of the milling head (44).
5. The milling head as claimed in one of claims 1 to 4,
wherein the cutting dies provided

are designed as reversible dies (3; 28; 41) and, on the whole,
parallelepipedal with two wide sides, and the seats have a bearing
surface (4) per one wide side and a supporting surface (9),
transmitting the thrust force, for a narrow side, or vice versa, and
the reversible dies (3; 28; 41) have, on the side facing away from
the supporting surface (9), a groove which forms two faces (10)
and which, if appropriate with the exception of any indentations
and/or protuberances of their margins forming the cutting edges,
has a continuously uniform cross section mirror-symmetrical with
respect to the center plane of the reversible die, the two faces (10)
being planar and preferably being at an angle of 80 to 160° to one
another or being concave correspondingly to a groove of round
cross section.
6. The milling head as claimed in one of claims 1 to 5, wherein the
reversible dies (28; 41) provided have on their wide sides recesses
(29; 42) interrupting the cutting edge or cutting edges (30; 43).
7. The milling head as claimed in one of claims 1 to 6, wherein seat
designs (2; 21; 47; 48) extend over the entire generatrix of the
conical or cylindrical milling head (1; 20; 44), and different seats
(6-8; 23-26) for the cutting dies (3) have differently arranged
threaded bores (5) for a fastening screw (16) of the cutting die (3).
8. The milling head as claimed in one of claims 1 to 6, wherein,
on a conical or cylindrical milling head (34; 44), the seats
(37-40; 47; 48) are arranged in two coaxial rows, and
the milling head (34; 44) is composed of two

segments (35; 36; 45; 46) in each case having one of the rows.
9. The milling head as claimed in one of claims 1 to 6 or 8, wherein,
on a conical milling head (34), the seats (37-40) are arranged in
two coaxial rows, and the outer row has twice as many seats (37;
38) as the inner row.
10. The milling head as claimed in one of claims 1 to 9, wherein it is
provided with a guide mounted in its vicinity on the respective
machine (51; 62) and taking the form of stops (54; 56; 63; 64)
which are assigned to the two surfaces (57; 60) of the workpiece
which delimit the chamfer (49; 66).
11. The milling head as claimed in claim 10, wherein, where a
cylindrical milling head (2) is concerned, the stops are sliding strips
(63; 64) or strips (63; 64) provided with rollers, or the like.
12. The milling head as claimed in claim 10, wherein, where a conical
milling head (1) is concerned, one stop is a disk (56) preferably
axially displaceable and fixable with respect to the milling head (1),
and the other stop is a freely rotatable roller (54) which preferably
has only a narrow annular stop surface at its axial end facing the
milling head (1).



ABSTRACT


MILLING HEAD FOR MILLING CHAMFERS

The invention relates to a milling head (1) for milling chamfers (50), especially
for a mobile chamfer miller, comprising successive seats for blanking dies (3, 28,
31), said seats (6-8;23-26;31-33;37-40) having a position in which the blanking
dies with a leading edge angle of between 40 and 75° operate respectively on
average with a positive effective cutting angle of at least 6° and a clearance
angle of at least 6°, and are provided for a border comprising blanking dies (3,
28, 41) with a staggered arrangement of the cutting edges (17), such that
respectively only one cutting edge length of 15 mm, preferably 12 mm, at the
most, is active. Said measures increase the cutting performance of the milling
head. The reduced cutting edge length can be formed on a long blanking die
(28, 41) instead of using a shorter blanking die, in such a way that the cutting
edge (30, 43) is interrupted by cavities or other e.g. flat triangular recesses (29,
42) on the surface of the blanking die. The staggered arrangement is then
comparatively small.

Documents:

02989-kolnp-2006 abstract.pdf

02989-kolnp-2006 claims.pdf

02989-kolnp-2006 correspondence others.pdf

02989-kolnp-2006 description (complete).pdf

02989-kolnp-2006 drawings.pdf

02989-kolnp-2006 form-1.pdf

02989-kolnp-2006 form-2.pdf

02989-kolnp-2006 form-3.pdf

02989-kolnp-2006 form-5.pdf

02989-kolnp-2006 international publication.pdf

02989-kolnp-2006 international search report.pdf

02989-kolnp-2006 pct others.pdf

02989-kolnp-2006 priority document.pdf

02989-kolnp-2006-correspondence-1.2.pdf

02989-kolnp-2006-correspondence-1.3.pdf

02989-kolnp-2006-pct request.pdf

02989-kolnp-2006-priority document-1.1.pdf

02989.-kolnp-2006-correspondence others-1.1.pdf

02989.-kolnp-2006-form-26.pdf

2989-KOLNP-2006-(02-11-2012)-ABSTRACT.pdf

2989-KOLNP-2006-(02-11-2012)-CLAIMS.pdf

2989-KOLNP-2006-(02-11-2012)-CORRESPONDENCE.pdf

2989-KOLNP-2006-(02-11-2012)-DESCRIPTION (COMPLETE).pdf

2989-KOLNP-2006-(02-11-2012)-DRAWINGS.pdf

2989-KOLNP-2006-(02-11-2012)-FORM-1.pdf

2989-KOLNP-2006-(02-11-2012)-FORM-2.pdf

2989-KOLNP-2006-(02-11-2012)-OTHERS.pdf

2989-KOLNP-2006-(02-11-2012)-PETITION UNDER RULE 137.pdf

2989-KOLNP-2006-(13-08-2012)-ABSTRACT.pdf

2989-KOLNP-2006-(13-08-2012)-AMANDED CLAIMS.pdf

2989-KOLNP-2006-(13-08-2012)-DESCRIPTION (COMPLETE).pdf

2989-KOLNP-2006-(13-08-2012)-DRAWINGS.pdf

2989-KOLNP-2006-(13-08-2012)-EXAMINATION REPORT REPLY RECEIVED.pdf

2989-KOLNP-2006-(13-08-2012)-FORM-1.pdf

2989-KOLNP-2006-(13-08-2012)-FORM-2.pdf

2989-KOLNP-2006-(13-08-2012)-FORM-3.pdf

2989-KOLNP-2006-(13-08-2012)-FORM-5.pdf

2989-KOLNP-2006-(13-08-2012)-OTHERS.pdf

2989-KOLNP-2006-ABSTRACT.pdf

2989-KOLNP-2006-CANCELLED PAGES.pdf

2989-KOLNP-2006-CLAIMS.pdf

2989-KOLNP-2006-CORRESPONDENCE.pdf

2989-KOLNP-2006-DESCRIPTION (COMPLETE).pdf

2989-KOLNP-2006-DRAWINGS.pdf

2989-KOLNP-2006-EXAMINATION REPORT.pdf

2989-KOLNP-2006-FORM 1.pdf

2989-kolnp-2006-form 18.pdf

2989-KOLNP-2006-FORM 2.pdf

2989-KOLNP-2006-FORM 26.pdf

2989-KOLNP-2006-FORM 3.pdf

2989-KOLNP-2006-FORM 5.pdf

2989-KOLNP-2006-GRANTED-ABSTRACT.pdf

2989-KOLNP-2006-GRANTED-CLAIMS.pdf

2989-KOLNP-2006-GRANTED-DESCRIPTION (COMPLETE).pdf

2989-KOLNP-2006-GRANTED-DRAWINGS.pdf

2989-KOLNP-2006-GRANTED-FORM 1.pdf

2989-KOLNP-2006-GRANTED-FORM 2.pdf

2989-KOLNP-2006-GRANTED-FORM 3.pdf

2989-KOLNP-2006-GRANTED-FORM 5.pdf

2989-KOLNP-2006-GRANTED-SPECIFICATION-COMPLETE.pdf

2989-KOLNP-2006-INTERNATIONAL PUBLICATION.pdf

2989-KOLNP-2006-INTERNATIONAL SEARCH REPORT & OTHERS.pdf

2989-KOLNP-2006-OTHERS.pdf

2989-KOLNP-2006-PETITION UNDER RULE 137.pdf

2989-KOLNP-2006-PRIORITY DOCUMENT.pdf

2989-KOLNP-2006-REPLY TO EXAMINATION REPORT.pdf

2989-KOLNP-2006-SPECIFICATION-COMPLETE.pdf

2989-KOLNP-2006-TRANSLATED COPY OF PRIORITY DOCUMENT.pdf

abstract-02989-kolnp-2006.jpg


Patent Number 258117
Indian Patent Application Number 2989/KOLNP/2006
PG Journal Number 49/2013
Publication Date 06-Dec-2013
Grant Date 04-Dec-2013
Date of Filing 17-Oct-2006
Name of Patentee STEPHAN RIETH
Applicant Address WEIMARER STRASSE 12, 66606 ST. WENDEL GERMANY
Inventors:
# Inventor's Name Inventor's Address
1 STEPHAN RIETH WEIMARER STRASSE 12, 66606 ST. WENDEL GERMANY
PCT International Classification Number B23B51/10; B23C5/20
PCT International Application Number PCT/DE2005/000592
PCT International Filing date 2005-03-30
PCT Conventions:
# PCT Application Number Date of Convention Priority Country
1 10 2004 016 566.1 2004-03-31 Germany
2 10 2004 023 743.3 2004-05-11 Germany