WO1988009707A1 - Outil a brosse rotative - Google Patents

Outil a brosse rotative Download PDF

Info

Publication number
WO1988009707A1
WO1988009707A1 PCT/EP1988/000500 EP8800500W WO8809707A1 WO 1988009707 A1 WO1988009707 A1 WO 1988009707A1 EP 8800500 W EP8800500 W EP 8800500W WO 8809707 A1 WO8809707 A1 WO 8809707A1
Authority
WO
WIPO (PCT)
Prior art keywords
tool according
belt
rotary belt
bristles
rotary
Prior art date
Application number
PCT/EP1988/000500
Other languages
German (de)
English (en)
Inventor
Detlef Köppen
Original Assignee
Koeppen Detlef
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6329168&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO1988009707(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Koeppen Detlef filed Critical Koeppen Detlef
Priority to DE3854964T priority Critical patent/DE3854964D1/de
Priority to EP88905195A priority patent/EP0347429B1/fr
Publication of WO1988009707A1 publication Critical patent/WO1988009707A1/fr

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24DTOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D13/00Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor
    • B24D13/02Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by their periphery
    • B24D13/10Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by their periphery comprising assemblies of brushes
    • AHUMAN NECESSITIES
    • A46BRUSHWARE
    • A46BBRUSHES
    • A46B13/00Brushes with driven brush bodies or carriers
    • A46B13/001Cylindrical or annular brush bodies
    • A46B13/003Cylindrical or annular brush bodies made up of a series of annular brush rings; Annular brush rings therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24DTOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D9/00Wheels or drums supporting in exchangeable arrangement a layer of flexible abrasive material, e.g. sandpaper
    • B24D9/02Expansible drums for carrying flexible material in tubular form, e.g. expanded by centrifugal force

Definitions

  • the invention relates to a rotary belt tool for surface processing.
  • Such tools are e.g. Known as belt grinders, in which a grinding belt runs over a driven and a rotating disc, or rotary brush tools are also known, but in which the bristles are carried by the brush body or by segment pieces (DE-OS 28 25 090, DE-OS 31 35 -.68).
  • These known tools have various disadvantages such as that they are poorly suited for the surface treatment of profiled bars or for structuring wood and that they, among other things. unwieldy, not very effective and, above all, only very limitedly applicable and operational.
  • the invention is therefore based on the object of eliminating these disadvantages and specifying an improved radially acting rotary belt tool for surface processing, which is more versatile, works more effectively and yet is also easy to handle, durable, safe and easy to maintain, and is compact and inexpensive.
  • This object is achieved by the features in the characterizing part of claim 1 as the main claim.
  • the features of the subclaims according to the invention also represent inventive developments and refinements of the main subject-matter within the meaning of the object.
  • the tool according to the invention can be designed as a wire brush, for example for structuring wood or for working up leather or for rust removal from steel, in which the opposite the tool axis as the axis of rotation of the bristles standing outward, for example can be fastened non-rotatably to their main bristle axis at regular intervals from one another in such a way that bristles that are one behind the other in the circumferential direction are axially offset laterally from one another by the bristle wire diameter and the bristle end regions can be slightly bent, for example, also in the circumferential direction, the bristle ends can be ground and the removal rate can be determined by
  • Changing the direction of rotation of the tool is clearly changeable. Thanks to the bristle offset across the circumferential direction, the wood can be structured without damaging the wood surface. Different bristle lengths over the axial tool length make it possible to machine rods of any material with a profile cross section in the longitudinal direction on their surface over partial contour areas. When the direction of rotation is reversed, the free wire ends experience a much desired self-sharpening due to the non-rotatability and lateral displacement of the bristles, while otherwise the surface to be machined can be pollinated with increasing smoothing of the bristle ends. It is also possible to sharpen the bristle ends by simply pulling them off or dressing them, for example on the grindstone.
  • the tool according to the invention can also be used and used as a rotating file, as a milling tool, as a polishing tool, as a grinding tool, etc., depending on the equipment of the belt with the corresponding elements acting on the surface to be machined.
  • the tool according to the invention can be used, among other things, for structuring or cleaning surfaces, for example also for roughening and refurbishing, for example of leather or for polishing.
  • Figure I is a bristled design of the invention
  • Rotary belt tool in cross section Figure 2 shows an annular body of the tool for tensioning the belt on its axial lateral surface Figure 3 half of the clamping unit with the shaft for receiving the tool in a drive machine Figure 4 the other half of the clamping unit consisting of a flange with a central, axial shoulder, screw hole and axial projections for positive entrainment of the ring body.
  • Figure 1 an exemplary embodiment of a rotary belt tool according to the invention is shown, in which the belt 5 is equipped with steel wire bristles of the same length.
  • Has flat thin endless band 5 is stretched as a ring on a rubber-elastic ring body 3, which is clamped axially deforming between the two flanges 1 and 2 of the clamping unit 1,2 and tries to expand radially due to its deformation, whereby the band 5 is clamped.
  • the ring body 3 surrounds two mutually facing axial lugs 8, 9 on the two flanges 1 and 2 which center it and prevent its deformation towards the tool axis. Axially protrude into the two end faces of the ring body 3 on the flanges 1 and 2, formed axially, mutually facing projections, which ensures a reliable, positive driving connection and fastening of the ring body 3 to the clamping unit 1, 2.
  • the projections 11 enter the ring body 3 made of rubber-elastic material in an increasingly deep axial manner.
  • One of the flanges 2 has a central axial through-hole with a counterbore, which receives the shaft and the head of a clamping screw.
  • the clamping screw engages with its threaded shaft in a blind hole thread in the axial approach of the other flange 1, so that when the clamping screw is tightened, the two flanges 1 and 2 are clamped axially against one another and against the annular body 3, which in turn causes the band 5 to be circumferential of the ring body 3 is clamped.
  • the two flanges 1, 2 protrude somewhat beyond the diameter of the ring body 3 so as to axially enclose the band 5 on the ring body 3.
  • the flange 1 with the threaded blind hole in its axial shoulder 8 troughs on its side facing away from the shoulder a shaft 7 which serves to clamp the tool in a rotary drive, for example in the chuck of a hand drill.
  • the shaft 1, for example positively fastened to the flange 1, can for example have a regular hexagon cross section.
  • the two mutually facing axial lugs 8, 9 of the two flanges 1, 2 are at their ends by a radial web, on the one hand, and a corresponding groove, on the other hand, so positively interlocked that the two flanges 1, 2 are non-rotatable but axially displaceable.
  • the bristle length in this tool corresponds to approximately half the ring body diameter or approximately a quarter of the tool diameter.
  • the clamping screw has, for example, a hexagon socket in the head.
  • the shaft 7 is fastened axially, for example, by radial deformation of the wall of an attachment shoulder of the flange 1 receiving its end.
  • FIG. 2 shows the ring body 3 of the tool, which is made of rubber-elastic material, with its bore for receiving the flange projections 8, 9 and with the end-side recesses for the engagement of the flange projections 11, which have a uniformly increasing depth with a smaller radius.
  • the two end faces of the ring body 3 are very frustoconical, ie the axial length of the ring body 3 decreases slightly and uniformly with increasing radius from the axis.
  • the ring body 3 has a plane of symmetry which is perpendicular to the ring body axis.
  • FIG. 3 shows the flange 7 of the clamping unit 1, 2 with the fastening attachment for the hexagonal shaft on one flange side for clamping the tool in a rotary drive, such as the drill chuck of a drilling machine.
  • the fastening attachment has a blind hole with a hexagonal inner cross section.
  • the flange 1 carries the axial shoulder 8 with the threaded blind hole, a guide recess as a cylindrical end depression and radially outside the depression, each with a carrier web.
  • the flange 1 On the fastening side, the flange 1 has radially extending stiffening ribs that decrease conically radially outwards.
  • the flange 1 On the side of the axial cylindrical projection 8, the flange 1 carries, with a larger radius, the projections 11, which are evenly distributed over the circumference, the height of which, compared with the flange 1, decreases uniformly to a lower final height with increasing radius.
  • Figure 4 finally shows the other flange 2, which differs from the former in that, instead of the fastening projection and the threaded blind hole, a through hole is provided for the clamping screw with a conical depression at the end of the hole facing away from the projection.
  • the free end of the attachment has an groove or a slot for receiving the drive bars across the tool axis.
  • This flange 2 has no radial stiffening ribs.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Brushes (AREA)

Abstract

Un outil à bande rotative de traitement de surface est plus polyvalent que des outils connus, plus efficace tout en étant facile à manier et à entretenir, durable, sûr, compact et économique. La bande sans fin de l'outil a la forme d'un anneau étroit fermé à l'extérieur duquel sont radialement fixés des éléments tels que brosses, grains abrasifs ou produits de polissage. La bande est fixée sur toute sa circonférence sur la circonférence de l'enveloppe axiale d'un seul support rotatif. L'outil, qui convient par exemple pour structurer le bois, traiter le cuir ou dérouiller des profils en acier, peut être une brosse métallique dont les soies métalliques s'étendant radialement vers l'extérieur depuis l'axe de l'outil ou axe de rotation peuvent être par exemple être fixées à intervalles réguliers l'une de l'autre et de manière non-rotative par rapport à leur axe principal, de sorte que les soies agencées les unes derrière les autres dans le sens de la circonférence sont latéralement décalées les unes par rapport aux autres dans le sens axial; les sections terminales des soies peuvent par exemple être légèrement recourbées dans le sens de la circonférence, les extrêmités des soies peuvent être affûtées et le taux d'abrasion peut être sensiblement modifié par un changement du sens de rotation. En agençant par exemple des soies de longueurs différentes dans le sens de la longueur axiale de l'outil, on peut travailler des régions partielles du profil de la surface de barres en n'importe quel matériau ayant une section transversale profilée dans le sens longitudinal.
PCT/EP1988/000500 1987-06-05 1988-06-05 Outil a brosse rotative WO1988009707A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE3854964T DE3854964D1 (de) 1987-06-05 1988-06-05 Rotationsbürstenwerkzeug
EP88905195A EP0347429B1 (fr) 1987-06-05 1988-06-05 Outil a brosse rotative

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19873718932 DE3718932A1 (de) 1987-06-05 1987-06-05 Rotationsbandwerkzeug
DEP3718932.8 1987-06-05

Publications (1)

Publication Number Publication Date
WO1988009707A1 true WO1988009707A1 (fr) 1988-12-15

Family

ID=6329168

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1988/000500 WO1988009707A1 (fr) 1987-06-05 1988-06-05 Outil a brosse rotative

Country Status (5)

Country Link
EP (1) EP0347429B1 (fr)
AT (1) ATE133598T1 (fr)
AU (1) AU1802588A (fr)
DE (3) DE3718932A1 (fr)
WO (1) WO1988009707A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6199877B1 (en) * 2000-08-07 2001-03-13 Troy E. Shockley Transformable mechanic's creeper
US7904989B1 (en) * 2008-02-02 2011-03-15 Tsan Chung Industrial Co., Ltd. Rotary eraser assembly
DE202012101525U1 (de) 2012-04-24 2013-07-26 Monti-Werkzeuge Gmbh Rotativ antreibbare Drehwerkzeugeinrichtung
CN103653730A (zh) * 2012-09-20 2014-03-26 江苏鑫晟波纹管有限公司 自动旋转的窄口瓶清洁器
CN102528631B (zh) * 2011-12-12 2015-10-28 中钢集团衡阳重机有限公司 浮动离心式深孔抛光装置
CN115415946A (zh) * 2022-08-22 2022-12-02 安徽华科实业有限公司 一种齿纹边缘平面钢丝轮及其生产方法

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3741983A1 (de) * 1987-12-11 1989-06-22 Monti Werkzeuge Gmbh Rotativ antreibbare werkzeugspannvorrichtung
DE4013193C2 (de) * 1990-04-25 1994-05-26 Bayerische Motoren Werke Ag Reinigungs- und Polierwalze
DE4033458A1 (de) * 1990-10-20 1992-05-07 Koeppen Renate Sicherheitsrotationsbuerste
CA2076344A1 (fr) * 1990-10-20 1992-04-21 Detlef Koeppen Outil rotatif
DE4205265C1 (en) * 1992-02-21 1993-08-26 Monti-Werkzeuge Gmbh, 5300 Bonn, De Rotary brush with brush holder and circular brush - has bristles on flexible brush strip, axial arms, and radial flanges
DE4326793C1 (de) * 1993-08-10 1994-09-29 Monti Werkzeuge Gmbh Rotativ antreibbares Bürstenaggregat
DE10344989A1 (de) * 2003-09-27 2005-04-28 Hilti Ag Spannvorrichtung
DE102004021188A1 (de) * 2004-04-29 2005-12-29 Monti-Werkzeuge Gmbh Bürstenaggregat
DE102009016151B4 (de) 2009-04-05 2012-02-23 Kratzenfabrik Mehlhorn Gmbh Rotationsbürstenwerkzeug zur Oberflächenbearbeitung
DE102016111265A1 (de) 2016-06-20 2017-12-21 Monti-Werkzeuge Gmbh Rotativ antreibbare Drehwerkzeugeinrichtung
EP4219073A1 (fr) 2022-01-26 2023-08-02 Monti-Werkzeuge GmbH Dispositif outil rotatif à entraînement rotatif

Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2100138A (en) * 1933-11-24 1937-11-23 Heldt Friedrich Bristle for cleaning devices
CH247493A (de) * 1945-06-20 1947-03-15 Gsell Paul Vorrichtung für die Oberflächenbearbeitung von Holz zur Erzielung einer plastischen Maserwirkung.
CH268252A (de) * 1944-06-21 1950-05-15 Podnik Sklarny Union Narodni Verfahren zur Herstellung von Polierscheiben aus Glasfasern.
DE757790C (de) * 1940-03-02 1954-01-18 Rueggeberg August Fa Umlaufender elastischer Schleifkoerper
US2962745A (en) * 1959-06-11 1960-12-06 Pedersen Olaf Nedland Rotary wire brush
US3325846A (en) * 1965-04-14 1967-06-20 Anderson Corp Wire brush
DE1934468A1 (de) * 1967-06-30 1971-01-14 Rands Steve Albert Buerste mit ein Schleifmittel tragenden Borsten
GB1368193A (en) * 1972-03-30 1974-09-25 Salukvadze V S Rotary cutting tool
LU71334A1 (fr) * 1973-11-22 1975-08-20
DE2659460A1 (de) * 1976-12-30 1978-07-06 C & L E Attenborough Ltd Zylindrischer buerstenkoerper
DE3243598A1 (de) * 1982-11-25 1984-05-30 Festo-Maschinenfabrik Gottlieb Stoll, 7300 Esslingen Traeger fuer endlos-schleifhuelse
DE3337892A1 (de) * 1983-10-19 1985-05-09 Weiler Bürsten GmbH, 7801 Wolfenweiler Buerste fuer oberflaechenbearbeitung mit drahtborsten
DE3408369A1 (de) * 1984-03-07 1985-09-12 Heinrich Lippert Gmbh, 7530 Pforzheim Verfahren zum herstellen einer rotationsbuerste
DE3511910A1 (de) * 1984-08-13 1986-02-13 August Mink KG, 7320 Göppingen Verfahren zur schaffung von buerstenfeldern gleicher dichte aus beborsteten einzelelementen sowie nach diesem verfahren aufgebautes buerstenfeld

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1039487A (en) * 1912-03-09 1912-09-24 Williams Patent Crusher & Pulv Abrasive.
US2800750A (en) * 1955-09-09 1957-07-30 Dayton Abrasive Products Inc Abrasive tool
US3144738A (en) * 1961-03-06 1964-08-18 Merit Products Inc Abrading apparatus
DE1206755B (de) * 1962-01-25 1965-12-09 Crosby Frisian Fuer Company Verfahren und Vorrichtung zum Herstellen einer Rundbuerste mit Pelzbesatz
DE2825090A1 (de) * 1978-06-08 1979-12-13 Sueddeutsche Buersten Und Kuns Buerste
DE2916438C2 (de) * 1979-04-24 1983-11-17 Staedtler & Uhl, 8540 Schwabach Nadelträger von Textilmaschinen zur Aufnahme von Nadelstreifen
DE2918210C2 (de) * 1979-05-05 1981-10-01 Fa. Peter Wolters, 2370 Rendsburg Garnitur für Kardendeckel
FR2489676B1 (fr) * 1980-09-09 1985-08-30 Petroles Cie Francaise Brosse metallique et application de celle-ci a l'enlevement d'un revetement anticorrosion

Patent Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2100138A (en) * 1933-11-24 1937-11-23 Heldt Friedrich Bristle for cleaning devices
DE757790C (de) * 1940-03-02 1954-01-18 Rueggeberg August Fa Umlaufender elastischer Schleifkoerper
CH268252A (de) * 1944-06-21 1950-05-15 Podnik Sklarny Union Narodni Verfahren zur Herstellung von Polierscheiben aus Glasfasern.
CH247493A (de) * 1945-06-20 1947-03-15 Gsell Paul Vorrichtung für die Oberflächenbearbeitung von Holz zur Erzielung einer plastischen Maserwirkung.
US2962745A (en) * 1959-06-11 1960-12-06 Pedersen Olaf Nedland Rotary wire brush
US3325846A (en) * 1965-04-14 1967-06-20 Anderson Corp Wire brush
DE1934468A1 (de) * 1967-06-30 1971-01-14 Rands Steve Albert Buerste mit ein Schleifmittel tragenden Borsten
GB1368193A (en) * 1972-03-30 1974-09-25 Salukvadze V S Rotary cutting tool
LU71334A1 (fr) * 1973-11-22 1975-08-20
DE2659460A1 (de) * 1976-12-30 1978-07-06 C & L E Attenborough Ltd Zylindrischer buerstenkoerper
DE3243598A1 (de) * 1982-11-25 1984-05-30 Festo-Maschinenfabrik Gottlieb Stoll, 7300 Esslingen Traeger fuer endlos-schleifhuelse
DE3337892A1 (de) * 1983-10-19 1985-05-09 Weiler Bürsten GmbH, 7801 Wolfenweiler Buerste fuer oberflaechenbearbeitung mit drahtborsten
DE3408369A1 (de) * 1984-03-07 1985-09-12 Heinrich Lippert Gmbh, 7530 Pforzheim Verfahren zum herstellen einer rotationsbuerste
DE3511910A1 (de) * 1984-08-13 1986-02-13 August Mink KG, 7320 Göppingen Verfahren zur schaffung von buerstenfeldern gleicher dichte aus beborsteten einzelelementen sowie nach diesem verfahren aufgebautes buerstenfeld

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
Patent Abstracts of Japan, Band 11, Nr. 250 (M-616)(2697), 14. August 1987; & JP-A-6257877 (NIPPON STEEL CORP.) 13. Marz 1987 *
Patent Abstracts of Japan, Band 5, Nr. 116 (M-80)(788), 25 July 1981; & JP-A-5656383 (NORIA MASUDA) 18. Mai 1981 *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6199877B1 (en) * 2000-08-07 2001-03-13 Troy E. Shockley Transformable mechanic's creeper
US7904989B1 (en) * 2008-02-02 2011-03-15 Tsan Chung Industrial Co., Ltd. Rotary eraser assembly
CN102528631B (zh) * 2011-12-12 2015-10-28 中钢集团衡阳重机有限公司 浮动离心式深孔抛光装置
DE202012101525U1 (de) 2012-04-24 2013-07-26 Monti-Werkzeuge Gmbh Rotativ antreibbare Drehwerkzeugeinrichtung
CN103653730A (zh) * 2012-09-20 2014-03-26 江苏鑫晟波纹管有限公司 自动旋转的窄口瓶清洁器
CN115415946A (zh) * 2022-08-22 2022-12-02 安徽华科实业有限公司 一种齿纹边缘平面钢丝轮及其生产方法

Also Published As

Publication number Publication date
DE3718932C2 (fr) 1990-06-13
AU1802588A (en) 1989-01-04
DE8717788U1 (fr) 1990-05-03
EP0347429B1 (fr) 1996-01-31
DE3718932A1 (de) 1988-12-22
ATE133598T1 (de) 1996-02-15
EP0347429A1 (fr) 1989-12-27
DE3854964D1 (de) 1996-03-14

Similar Documents

Publication Publication Date Title
EP0347429B1 (fr) Outil a brosse rotative
EP0943400B1 (fr) Brosse de meulage
DE3243598C2 (fr)
EP0911116B1 (fr) Article de meulage et dispositif de fixation
DE3308586C2 (de) Vorrichtung zur spitzenlosen, spanenden Außenfeinbearbeitung von länglichen Werkstücken
DE3818828C2 (fr)
DE3145151C2 (de) Antreibbare Walze zum Überschleifen oder Polieren der Oberfläche einer Fahrzeugkarosserie oder dergleichen
CH664099A5 (en) External pipe-cleaning tool - has brushes comprising bundles in rows in bars inserted in housing
DE2644992A1 (de) Fraesvorrichtung, insbesondere zum abfraesen von strassenbelaegen
DE3735266A1 (de) Vorrichtung und verfahren zur honbearbeitung von werkstuecken
WO2005023491A1 (fr) Outil pour usiner des surfaces, des zones d'arete et des contours
DE7903893U1 (de) Rotations-schleifwerkzeug
EP0033562A2 (fr) Corps destinés au traitement de tonnelage
EP0983825B1 (fr) Brosse boisseau
DE3517147A1 (de) Werkzeug zum entgraten von bohrungsraendern
DE1956004A1 (de) Borstenaufweisendes Element zur Verwendung bei Buersten,Besen und aehnlichen Reinigungsgeraeten
DE19639453B4 (de) Schleifvorrichtung
DE839636C (de) Drahtbuerste
DE3116326A1 (de) Buerstenwerkzeug zum entgraten
DE4204585C2 (de) Honwerkzeug
DE7505499U (de) Profilschleifscheibe
DE8526397U1 (de) Handwerkzeug zum Entgraten oder Kantenbrechen von Werkstücken
DE3342839A1 (de) Schleifwerkzeug
CH687133A5 (de) Buerstenschleifkopf fuer eine Schleifmaschine, insbesondere fuer Taeferbretter, sowie Schleifmaschine.
DE19848221A1 (de) Vorrichtung zum Schleifen der Borstenenden eines Borstenfeldes

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AU BG BR DK FI NO RO SU US

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH DE FR GB IT LU NL SE

WWE Wipo information: entry into national phase

Ref document number: 1988905195

Country of ref document: EP

WWP Wipo information: published in national office

Ref document number: 1988905195

Country of ref document: EP

WWG Wipo information: grant in national office

Ref document number: 1988905195

Country of ref document: EP