GB1266653A - - Google Patents
Info
- Publication number
- GB1266653A GB1266653A GB1266653DA GB1266653A GB 1266653 A GB1266653 A GB 1266653A GB 1266653D A GB1266653D A GB 1266653DA GB 1266653 A GB1266653 A GB 1266653A
- Authority
- GB
- United Kingdom
- Prior art keywords
- adhesive
- magnetic means
- plate
- balls
- master gauge
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired
Links
- 239000000853 adhesive Substances 0.000 abstract 4
- 230000001070 adhesive effect Effects 0.000 abstract 4
- 229910000831 Steel Inorganic materials 0.000 abstract 3
- 239000010959 steel Substances 0.000 abstract 3
- 229920006332 epoxy adhesive Polymers 0.000 abstract 1
- 239000010438 granite Substances 0.000 abstract 1
- 125000006850 spacer group Chemical group 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q16/00—Equipment for precise positioning of tool or work into particular locations not otherwise provided for
- B23Q16/02—Indexing equipment
- B23Q16/08—Indexing equipment having means for clamping the relatively movable parts together in the indexed position
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/10—Auxiliary devices, e.g. bolsters, extension members
- B23Q3/106—Auxiliary devices, e.g. bolsters, extension members extendable members, e.g. extension members
- B23Q3/107—Auxiliary devices, e.g. bolsters, extension members extendable members, e.g. extension members with positive adjustment means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/15—Devices for holding work using magnetic or electric force acting directly on the work
- B23Q3/154—Stationary devices
- B23Q3/1546—Stationary devices using permanent magnets
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/02—Permanent magnets [PM]
- H01F7/0231—Magnetic circuits with PM for power or force generation
- H01F7/0252—PM holding devices
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S33/00—Geometrical instruments
- Y10S33/01—Magnetic
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49764—Method of mechanical manufacture with testing or indicating
- Y10T29/49771—Quantitative measuring or gauging
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T408/00—Cutting by use of rotating axially moving tool
- Y10T408/03—Processes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T409/00—Gear cutting, milling, or planing
- Y10T409/30—Milling
- Y10T409/303752—Process
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T409/00—Gear cutting, milling, or planing
- Y10T409/30—Milling
- Y10T409/308624—Milling with limit means to aid in positioning of cutter bit or work [e.g., gauge, stop, etc.]
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Power Engineering (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
- Jigs For Machine Tools (AREA)
- Adhesives Or Adhesive Processes (AREA)
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US82158769A | 1969-05-05 | 1969-05-05 | |
| US2571370A | 1970-04-06 | 1970-04-06 | |
| US12602271A | 1971-03-19 | 1971-03-19 | |
| US12602371A | 1971-03-19 | 1971-03-19 | |
| US12602171A | 1971-03-19 | 1971-03-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1266653A true GB1266653A (enExample) | 1972-03-15 |
Family
ID=27534126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1266653D Expired GB1266653A (enExample) | 1969-05-05 | 1970-04-28 |
Country Status (4)
| Country | Link |
|---|---|
| US (4) | US3723927A (enExample) |
| DE (1) | DE2022003B2 (enExample) |
| FR (1) | FR2047312A5 (enExample) |
| GB (1) | GB1266653A (enExample) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS539535A (en) * | 1976-07-12 | 1978-01-28 | Mead Corp | Jet drop printing head and method of as sembling the same |
| CN103100899A (zh) * | 2012-11-15 | 2013-05-15 | 无锡市航鹄科技有限公司 | 高精度铣槽打孔定位工装 |
| CN105382316A (zh) * | 2015-12-24 | 2016-03-09 | 哈尔滨锅炉厂有限责任公司 | 人孔盖板在数控铣床上加工密封面装置及装卡方法 |
| CN105568451A (zh) * | 2016-02-01 | 2016-05-11 | 江苏精亚环境科技有限公司 | 巡回清洁器吹嘴回转避让之拉线机构的定位装置 |
Families Citing this family (71)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3846917A (en) * | 1972-10-25 | 1974-11-12 | A Blakey | Measuring and locating system components |
| US3793738A (en) * | 1972-10-25 | 1974-02-26 | Gen Dynamics Corp | Measuring and locating system components |
| SE444986B (sv) * | 1976-11-20 | 1986-05-20 | Ehrat Werner Fa | Anordning for inbordes centrering av en i anordningen ingaende centrerspindel och ett hal i ett foremal |
| FR2469982A1 (fr) * | 1979-11-26 | 1981-05-29 | Mecalix | Dispositif de positionnement relatif de deux pieces |
| US4392643A (en) * | 1980-03-27 | 1983-07-12 | Suburban Tool, Inc. | Magnetic hold down tool |
| US4384396A (en) * | 1980-12-12 | 1983-05-24 | Smolik Robert A | Apparatus and method for use in installation of a receptacle box |
| US4523450A (en) * | 1981-11-07 | 1985-06-18 | Carl-Zeiss-Stiftung, Heidenheim/Brenz | Method of calibrating probe pins on multicoordinate measurement machines |
| US4435905A (en) | 1982-03-15 | 1984-03-13 | The United States Of America As Represented By The United States Department Of Energy | Telescoping magnetic ball bar test gage |
| US4735671A (en) * | 1983-01-31 | 1988-04-05 | Xerox Corporation | Method for fabricating full width scanning arrays |
| US4574625A (en) * | 1983-04-12 | 1986-03-11 | Federal Products Corporation | Surface finish, displacement and contour scanner |
| JPS59191224U (ja) * | 1983-06-06 | 1984-12-19 | 鈴木鉄工株式会社 | ステツプブロツク |
| US4492036A (en) * | 1984-01-11 | 1985-01-08 | Brown & Sharp Manufacturing Company | Magnetic ball bar gauge |
| US4680869A (en) * | 1985-05-13 | 1987-07-21 | David Murkens | Cylindrical square |
| US5125134A (en) * | 1985-12-27 | 1992-06-30 | Tamao Morita | Magnetic fastener |
| CH672838A5 (enExample) * | 1986-11-03 | 1989-12-29 | Inhag Ind Handels Ag | |
| US5397231A (en) * | 1987-06-23 | 1995-03-14 | Bald; Hubert | Position assembly for use in assembling two components |
| US4777463A (en) * | 1987-09-25 | 1988-10-11 | Dana Corporation | Magnetic fixture assembly |
| JP2561109B2 (ja) * | 1988-01-27 | 1996-12-04 | 株式会社応用技術研究所 | 磁気掛止具 |
| JPH02105503A (ja) * | 1988-10-14 | 1990-04-18 | Oyo Gijutsu Kenkyusho:Kk | 磁気掛止具 |
| CS274302B1 (en) * | 1989-01-24 | 1991-04-11 | Vlastislav Doc Ing Csc Bocek | Carrier for staking device |
| GB8901742D0 (en) * | 1989-01-26 | 1989-03-15 | British Aerospace | Adhesive bonding of structures |
| US5048954A (en) * | 1989-07-07 | 1991-09-17 | Miradco | Laser-based wheel alignment system |
| GB8927675D0 (en) * | 1989-12-07 | 1990-02-07 | Alexander William D | Teaching aid |
| US5270678A (en) * | 1992-03-06 | 1993-12-14 | Walker Magnetics Group, Inc. | Magnetic rail chuck |
| US5343346A (en) * | 1993-05-06 | 1994-08-30 | Xolox Corporation | Single point magnetic contact hatch assembly |
| US5432434A (en) * | 1993-06-14 | 1995-07-11 | Avco Corporation | System for matching a new hole in an overlying member with an existing hole in an underlying member |
| AUPM527894A0 (en) * | 1994-04-26 | 1994-05-19 | Fawcett, Alan John | Magnetic holding device |
| WO1997012197A1 (en) * | 1995-09-28 | 1997-04-03 | The Molen Company Inc. | Universal measurement fixture |
| US5735056A (en) * | 1995-10-03 | 1998-04-07 | Gosine; Gary G. | Modular tooling system for use with a gauging machine |
| JP4066004B2 (ja) * | 1997-10-13 | 2008-03-26 | 忠弘 大見 | 上段部材取付けの基準となる孔を有する複数の下段部材の固定方法および固定用治具 |
| US6084397A (en) | 1997-12-22 | 2000-07-04 | Emc Corporation | Verification gauge for an electronic package lead inspection apparatus |
| ITMI981109A1 (it) * | 1998-05-20 | 1999-11-20 | Claudio Vicentelli | Moduli per la realizzazione di assiemi di ancoraggio magnetico e relativi assiemi |
| PT1068918E (pt) * | 1999-07-14 | 2005-02-28 | Erowa Ag | Dispositivo para o aperto em posicao definida de uma peca de trabalho na zona de trabalho de um torno mecanico |
| US6460239B2 (en) * | 1999-08-25 | 2002-10-08 | Camax Tool Company, Inc. | Magnet carrying insert and method of incorporating same |
| ES2270830T5 (es) * | 1999-09-09 | 2013-11-19 | Universal Engraving, Inc. | Matrices laminadas de impresión de artes gráficas no férreas/ferromagnéticas y método de producción asociado |
| US6598306B2 (en) * | 2001-04-17 | 2003-07-29 | Homer L. Eaton | Self-loading spatial reference point array |
| USD467485S1 (en) | 2001-05-22 | 2002-12-24 | Wolfcraft, Inc. | Router table adapter base plate |
| US6722221B2 (en) * | 2002-02-01 | 2004-04-20 | Steven Frank Maxwell | Adjustable cam shaft sprocket |
| US6708421B1 (en) * | 2002-12-16 | 2004-03-23 | David J. Crorey | Locating device |
| WO2004071714A2 (en) * | 2003-02-11 | 2004-08-26 | Mag Clip Corporation | Magnetic tool organizing system and method of manufacturing a magnetic tool organizing system |
| US7055679B2 (en) * | 2003-11-25 | 2006-06-06 | General Motors Corporation | Reconfigurable magnetic fixturing pallets for an assembly line |
| DE102005009227B4 (de) * | 2004-03-05 | 2023-06-15 | Wolfcraft Gmbh | Frästisch und Zubehör |
| TWI277744B (en) * | 2005-01-19 | 2007-04-01 | Asustek Comp Inc | Apparatus for fixing a workpiece by magnetic force and fixing unit thereof |
| US7744051B2 (en) * | 2005-04-26 | 2010-06-29 | Mag Clip Corporation | Magnetic attachment element |
| US7428782B1 (en) * | 2005-07-15 | 2008-09-30 | The United States Of America As Represented By The Secretary Of The Army | Plotting board with magnetic pivot |
| US7367131B1 (en) | 2006-01-11 | 2008-05-06 | Robert Hordis | System for locating a junction box |
| US7458169B1 (en) * | 2006-06-19 | 2008-12-02 | Coope Robert L | Locator dowel assembly |
| WO2008105041A1 (ja) * | 2007-02-23 | 2008-09-04 | Pascal Engineering Corporation | 磁力式固定装置 |
| US7434327B2 (en) * | 2007-03-06 | 2008-10-14 | Crorey David J | Ceiling locating device |
| US7661201B1 (en) | 2007-08-24 | 2010-02-16 | Robert Hordis | Magnetic locator system |
| US20090218463A1 (en) * | 2008-02-23 | 2009-09-03 | Winnard Stanley D | Magnetic Tool Restraint |
| US8225494B2 (en) * | 2008-04-22 | 2012-07-24 | GM Global Technology Operations LLC | Reconfigurable pallet with error proofing |
| TWM350429U (en) * | 2008-09-04 | 2009-02-11 | Earth Chain Entpr Co Ltd | Permanent magnet electric control type indexing device |
| US7886455B1 (en) * | 2008-11-13 | 2011-02-15 | Stojkovic Stephanie E | Angle jig and associated method |
| US7926195B2 (en) * | 2008-11-24 | 2011-04-19 | Crorey David J | Flexible locating device |
| US20110248435A1 (en) * | 2008-12-16 | 2011-10-13 | Giovanni Cosmai | Magnetic clamping device for holding a workpiece in a precisely fixtured position |
| US20120032380A1 (en) * | 2010-08-09 | 2012-02-09 | Valeri Riachentsev | PCB holder |
| ITTO20110519A1 (it) * | 2011-06-13 | 2012-12-14 | Bottero Spa | Gruppo di molatura di una lastra di vetro |
| CN103203728B (zh) * | 2012-01-11 | 2017-04-05 | 昆山允升吉光电科技有限公司 | 三点支撑台的调平方法 |
| CN103203729A (zh) * | 2012-01-11 | 2013-07-17 | 昆山允升吉光电科技有限公司 | 三点支撑台 |
| CN104101275B (zh) * | 2013-04-10 | 2016-12-28 | 富泰华工业(深圳)有限公司 | 检测装置 |
| DE102014205612B4 (de) * | 2014-03-26 | 2020-07-09 | Bayerische Motoren Werke Aktiengesellschaft | Verfahren zum Positionieren eines Bauteils |
| DE102014116923B4 (de) * | 2014-11-19 | 2021-02-18 | HARTING Electronics GmbH | Vorrichtung zum Transport von Gegenständen |
| JP6482062B2 (ja) * | 2014-12-16 | 2019-03-13 | Dmg森精機株式会社 | ワーク固定治具及びこれを用いたワーク固定方法 |
| GB201608336D0 (en) * | 2016-05-12 | 2016-06-29 | Rolls Royce Plc | A method of providing a fixture for a ceramic article, a method of machining a ceramic article and a method of investment casting using a ceramic article |
| US10449612B2 (en) * | 2016-10-24 | 2019-10-22 | Steel 21, LLC | Methods of milling a piece of raw steel stock into a machine-ready piece of steel |
| KR101750376B1 (ko) * | 2016-12-16 | 2017-06-23 | 화천기공 주식회사 | 전자석 척 장착구조 |
| FR3073621B1 (fr) * | 2017-11-13 | 2019-10-11 | Psa Automobiles Sa | Maquette de controle dimensionnel d’un ouvrant de vehicule automobile |
| US10869561B2 (en) * | 2018-12-28 | 2020-12-22 | Target Brands, Inc. | Reconfigurable magnetic display fixture and system |
| CN110280841B (zh) * | 2019-07-10 | 2020-06-09 | 信丰县包钢新利稀土有限责任公司 | 一种环状钕铁硼磁铁切片机 |
| CN111168152A (zh) * | 2019-12-06 | 2020-05-19 | 安徽麦克威链传动制造有限公司 | 一种锯条加工用具有定位功能的切割装置 |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2286238A (en) * | 1938-12-10 | 1942-06-16 | Frank L Simmons | Magnetic chuck |
| US2201454A (en) * | 1939-03-22 | 1940-05-21 | Albert B Reich | Surface plate assembly |
| US2381458A (en) * | 1942-09-18 | 1945-08-07 | Meister Leo | Work positioning apparatus |
| US2510634A (en) * | 1945-11-03 | 1950-06-06 | Parker Pen Co | Magnetic desk set |
| US2561923A (en) * | 1945-11-05 | 1951-07-24 | Parker Pen Co | Fountain pen desk set |
| US2621807A (en) * | 1948-01-29 | 1952-12-16 | Edmund H Rendich | Display positioning device |
| US2926427A (en) * | 1953-12-28 | 1960-03-01 | Rohr Aircraft Corp | Laminated table |
| US2913830A (en) * | 1956-01-09 | 1959-11-24 | Paul M Schroter | Angle block |
| US3046665A (en) * | 1959-08-24 | 1962-07-31 | John C Nilsson | Gauge assembly |
| US3188951A (en) * | 1961-08-29 | 1965-06-15 | Magnachase Corp | Magnetic chase with relative movement between magnets and plate supporting surface |
| US3188078A (en) * | 1963-06-18 | 1965-06-08 | Kermit M Peterson | Micrometer workpiece guide means for die presses |
| FR1434671A (fr) * | 1964-05-15 | 1966-04-08 | Ferunion Mueszaki Kuelkeresked | Dispositif magnétique ou électromagnétique de fixation |
| GB1227732A (enExample) * | 1967-04-14 | 1971-04-07 | ||
| US3588989A (en) * | 1968-06-26 | 1971-06-29 | Giddings & Lewis | Precision locating means for machine tools and methods of construction |
-
1970
- 1970-04-06 US US00025713A patent/US3723927A/en not_active Expired - Lifetime
- 1970-04-28 GB GB1266653D patent/GB1266653A/en not_active Expired
- 1970-05-05 FR FR7016370A patent/FR2047312A5/fr not_active Expired
- 1970-05-05 DE DE19702022003 patent/DE2022003B2/de active Granted
-
1971
- 1971-03-19 US US00126021A patent/US3723928A/en not_active Expired - Lifetime
- 1971-03-19 US US00126022A patent/US3711929A/en not_active Expired - Lifetime
- 1971-03-19 US US00126023A patent/US3722360A/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS539535A (en) * | 1976-07-12 | 1978-01-28 | Mead Corp | Jet drop printing head and method of as sembling the same |
| CN103100899A (zh) * | 2012-11-15 | 2013-05-15 | 无锡市航鹄科技有限公司 | 高精度铣槽打孔定位工装 |
| CN105382316A (zh) * | 2015-12-24 | 2016-03-09 | 哈尔滨锅炉厂有限责任公司 | 人孔盖板在数控铣床上加工密封面装置及装卡方法 |
| CN105568451A (zh) * | 2016-02-01 | 2016-05-11 | 江苏精亚环境科技有限公司 | 巡回清洁器吹嘴回转避让之拉线机构的定位装置 |
Also Published As
| Publication number | Publication date |
|---|---|
| US3723927A (en) | 1973-03-27 |
| FR2047312A5 (enExample) | 1971-03-12 |
| US3711929A (en) | 1973-01-23 |
| DE2022003A1 (de) | 1970-11-26 |
| US3722360A (en) | 1973-03-27 |
| US3723928A (en) | 1973-03-27 |
| DE2022003B2 (de) | 1972-02-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |