GB2111320B - Electric tool with integral motor - Google Patents

Electric tool with integral motor

Info

Publication number
GB2111320B
GB2111320B GB08228416A GB8228416A GB2111320B GB 2111320 B GB2111320 B GB 2111320B GB 08228416 A GB08228416 A GB 08228416A GB 8228416 A GB8228416 A GB 8228416A GB 2111320 B GB2111320 B GB 2111320B
Authority
GB
United Kingdom
Prior art keywords
electric tool
integral motor
integral
motor
tool
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
Application number
GB08228416A
Other languages
English (en)
Other versions
GB2111320A (en
Inventor
Pierre Raymond Tardieu
Yves H Mulet-Marquis
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kollmorgen Technologies Corp
Original Assignee
Kollmorgen Technologies Corp
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
Application filed by Kollmorgen Technologies Corp filed Critical Kollmorgen Technologies Corp
Publication of GB2111320A publication Critical patent/GB2111320A/en
Application granted granted Critical
Publication of GB2111320B publication Critical patent/GB2111320B/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
    • H02K7/11—Structural association with clutches, brakes, gears, pulleys or mechanical starters with dynamo-electric clutches
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C1/00—Dental machines for boring or cutting ; General features of dental machines or apparatus, e.g. hand-piece design
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C1/00—Dental machines for boring or cutting ; General features of dental machines or apparatus, e.g. hand-piece design
    • A61C1/02—Dental machines for boring or cutting ; General features of dental machines or apparatus, e.g. hand-piece design characterised by the drive of the dental tools
    • A61C1/06—Dental machines for boring or cutting ; General features of dental machines or apparatus, e.g. hand-piece design characterised by the drive of the dental tools with electric drive
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H49/00—Other gearings
    • F16H49/005—Magnetic gearings with physical contact between gears
    • 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
    • Y10S74/00—Machine element or mechanism
    • Y10S74/04—Magnetic gearing
    • 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
    • Y10T74/00—Machine element or mechanism
    • Y10T74/19—Gearing
    • Y10T74/19642—Directly cooperating gears
    • Y10T74/1966—Intersecting axes

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Epidemiology (AREA)
  • Dentistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Power Engineering (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
  • Dynamo-Electric Clutches, Dynamo-Electric Brakes (AREA)
GB08228416A 1981-10-08 1982-10-05 Electric tool with integral motor Expired GB2111320B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8118981A FR2514250A1 (fr) 1981-10-08 1981-10-08 Piece a main a moteur integre

Publications (2)

Publication Number Publication Date
GB2111320A GB2111320A (en) 1983-06-29
GB2111320B true GB2111320B (en) 1985-01-03

Family

ID=9262860

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08228416A Expired GB2111320B (en) 1981-10-08 1982-10-05 Electric tool with integral motor

Country Status (7)

Country Link
US (1) US4486176A (cg-RX-API-DMAC7.html)
JP (1) JPS6058852B2 (cg-RX-API-DMAC7.html)
CH (1) CH650661A5 (cg-RX-API-DMAC7.html)
DE (1) DE3237197C2 (cg-RX-API-DMAC7.html)
FR (1) FR2514250A1 (cg-RX-API-DMAC7.html)
GB (1) GB2111320B (cg-RX-API-DMAC7.html)
IT (1) IT1149382B (cg-RX-API-DMAC7.html)

Families Citing this family (98)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2546253B1 (fr) * 1983-05-20 1988-09-16 Aaton Sa Dispositif d'accouplement magnetique entre deux arbres rotatifs menant et mene
DD231490A1 (de) * 1984-12-20 1986-01-02 Berlin Med Geraete Elektrisches antriebssystem fuer ein zahnaerztliches handstueck
JPS61293439A (ja) * 1985-06-21 1986-12-24 オリンパス光学工業株式会社 超音波内視鏡
US4791831A (en) * 1985-10-11 1988-12-20 Reliance Electric Company Gearmotor, housing and associated method
US5056213A (en) * 1985-10-11 1991-10-15 Reliance Electric Industrial Company Method of assembling a gearmotor and housing
US4808869A (en) * 1987-11-18 1989-02-28 Sundstrand Corp. Integral magnetic torque limiting coupling/motor
DE3814455C2 (de) * 1988-04-28 1995-04-06 Mtu Muenchen Gmbh Magnetgetriebe
US5135466A (en) * 1988-08-18 1992-08-04 Fedorov Svjatoslav N Method for treatment of diseases of the optic tract and a device for carrying said method into effect
US5569967A (en) * 1991-09-11 1996-10-29 Temper Corporation Magnetic gear and gear train configuration
FR2688923B1 (fr) * 1992-03-23 1994-06-10 Sagem Dispositif d'entrainement magnetique etanche sans traversee de paroi et sonde ultra-sonore en comportant application.
US5236053A (en) * 1992-05-15 1993-08-17 Aseptico, Incorporated Torque system
US5543695A (en) * 1993-12-15 1996-08-06 Stryker Corporation Medical instrument with programmable torque control
US5514926A (en) * 1994-05-26 1996-05-07 Lockheed Corporation Power transfer apparatus and method
DE4439799C1 (de) * 1994-11-08 1996-05-02 Wolf Gmbh Richard Elektromotorische Antriebseinheit für chirurgische Werkzeuge
JPH08243113A (ja) * 1995-03-14 1996-09-24 Morita Tokyo Seisakusho:Kk 磁気軸継ぎ手及び同継ぎ手を備えた歯科用電動ハンドピース
DE19644491A1 (de) * 1996-10-25 1998-04-30 Kaltenbach & Voigt Dentales Handstück
US5954479A (en) * 1996-12-16 1999-09-21 Smith; Ronald A. Twin engine, coaxial, dual-propeller propulsion system
US5793130A (en) * 1997-02-07 1998-08-11 Anderson; Marty J. Miniature electric generator and lighting apparatus
US6163095A (en) * 1997-12-09 2000-12-19 Imi Cornelius Inc. Drive system for a frozen food product dispenser
US6227853B1 (en) 1999-02-11 2001-05-08 Edge Technologies, Inc. Magnetic coupling system and method
US6420807B1 (en) * 1999-03-10 2002-07-16 Minolta Co., Ltd. Rotator driving device, image forming apparatus using the rotator driving device, and method of driving rotator
US6203322B1 (en) 1999-04-15 2001-03-20 David Kraenzle Dental prophylaxis angle
US6536536B1 (en) * 1999-04-29 2003-03-25 Stephen F. Gass Power tools
US6517528B1 (en) * 2000-04-13 2003-02-11 Scimed Life Systems, Inc. Magnetic catheter drive shaft clutch
US6411001B1 (en) * 2000-10-09 2002-06-25 Lockheed Martin Corporation Variable ratio angled magnetic drive
DE10052797A1 (de) * 2000-10-25 2002-05-08 Bosch Gmbh Robert Elektromotorisch angetriebene Pumpe und Verfahren zur Herstellung einer solchen Pumpe
DE10061900B4 (de) * 2000-12-12 2007-10-31 Sirona Dental Systems Gmbh Zahnärztliches Instrument mit einem angetriebenen Werkzeug und einer Übertragungseinrichtung mit magnetischen Kupplungselementen
US6606578B1 (en) 2001-03-01 2003-08-12 Lockheed Martin Corporation System and method for electromagnetic propulsion fan
GB2378737A (en) * 2001-06-30 2003-02-19 Martin Boughtwood Permanent magnet differential reluctance torque limiting clutch
US6713905B2 (en) * 2001-08-30 2004-03-30 S-B Power Tool Company Electric-motor rotary power tool having a light source with a self-generating power supply
US7268454B2 (en) 2003-01-17 2007-09-11 Magnetic Torque International, Ltd. Power generating systems
US7233088B2 (en) 2003-01-17 2007-06-19 Magnetic Torque International, Ltd. Torque converter and system using the same
TW200506241A (en) * 2003-08-08 2005-02-16 Yong-Han Liu Non-contact wheel-type transmitting device
US20050096683A1 (en) * 2003-11-01 2005-05-05 Medtronic, Inc. Using thinner laminations to reduce operating temperature in a high speed hand-held surgical power tool
US20050153596A1 (en) * 2004-01-13 2005-07-14 Vanwambeke Weston Power tool battery connector
US7955357B2 (en) 2004-07-02 2011-06-07 Ellipse Technologies, Inc. Expandable rod system to treat scoliosis and method of using the same
WO2006110670A1 (en) * 2005-04-12 2006-10-19 Spring Health Products, Inc. Electric dental handpiece and control system
DE102006051510A1 (de) 2006-03-09 2007-09-13 Kaltenbach & Voigt Gmbh Zahnärztliches, zahnmedizinisches oder dentaltechnisches Handstück mit Elektromotor
US7862502B2 (en) 2006-10-20 2011-01-04 Ellipse Technologies, Inc. Method and apparatus for adjusting a gastrointestinal restriction device
US8246533B2 (en) 2006-10-20 2012-08-21 Ellipse Technologies, Inc. Implant system with resonant-driven actuator
FI129765B (sv) * 2007-03-21 2022-08-15 Oy Kwh Mirka Ab Kompakt elektrisk slipmaskin
DE102007014691A1 (de) * 2007-03-27 2008-10-02 Kaltenbach & Voigt Gmbh Elektromotor zur Verwendung in einem zahnärztlichen, zahnmedizinischen oder dentaltechnischen Handstück sowie Stator hierfür
KR100826898B1 (ko) 2007-05-22 2008-05-06 이익재 핸드피스용 모터
US20080304710A1 (en) * 2007-06-08 2008-12-11 Lijie Xu Method and apparatus for processing image of at least one seedling
ATE468084T1 (de) * 2007-09-27 2010-06-15 W & H Dentalwerk Buermoos Gmbh Dentales handstück zur behandlung von wurzelkanälen
US20090112263A1 (en) 2007-10-30 2009-04-30 Scott Pool Skeletal manipulation system
JP2009226176A (ja) * 2008-03-24 2009-10-08 Yoshida Dental Mfg Co Ltd 歯科用ハンドピースの動力伝達機構
US11202707B2 (en) 2008-03-25 2021-12-21 Nuvasive Specialized Orthopedics, Inc. Adjustable implant system
US11241257B2 (en) 2008-10-13 2022-02-08 Nuvasive Specialized Orthopedics, Inc. Spinal distraction system
US8641417B2 (en) * 2008-10-29 2014-02-04 Arthrex, Inc. Sealing system for medical/dental handpieces
US8382756B2 (en) 2008-11-10 2013-02-26 Ellipse Technologies, Inc. External adjustment device for distraction device
GB0901122D0 (en) * 2009-01-26 2009-03-11 Marquis Guillaume Magnetic amplifier
US8197490B2 (en) 2009-02-23 2012-06-12 Ellipse Technologies, Inc. Non-invasive adjustable distraction system
US8403916B2 (en) * 2009-02-26 2013-03-26 Enteroptyx Surgical instrument having a magnetically driven detachable tool assembly
EP3404809B1 (de) 2009-03-20 2021-06-30 KaVo Dental GmbH Elektromotoranordnung für ein medizinisches, insbesondere ein dentales handstück
US9622792B2 (en) 2009-04-29 2017-04-18 Nuvasive Specialized Orthopedics, Inc. Interspinous process device and method
DK2473116T3 (da) 2009-09-04 2020-01-27 Nuvasive Specialized Orthopedics Inc Knoglevækstindretning
ATE544537T1 (de) * 2009-12-04 2012-02-15 Nexans Vorrichtung zum kontinuierlichen wellen eines metallischen rohres
US9248043B2 (en) 2010-06-30 2016-02-02 Ellipse Technologies, Inc. External adjustment device for distraction device
US8734488B2 (en) 2010-08-09 2014-05-27 Ellipse Technologies, Inc. Maintenance feature in magnetic implant
JP2012085955A (ja) * 2010-10-22 2012-05-10 Osada Res Inst Ltd 歯科治療用マイクロエンジンインスツルメント
WO2012112396A2 (en) 2011-02-14 2012-08-23 Ellipse Technologies, Inc. Device and method for treating fractured bones
US10743794B2 (en) 2011-10-04 2020-08-18 Nuvasive Specialized Orthopedics, Inc. Devices and methods for non-invasive implant length sensing
US10016220B2 (en) 2011-11-01 2018-07-10 Nuvasive Specialized Orthopedics, Inc. Adjustable magnetic devices and methods of using same
US20130338714A1 (en) 2012-06-15 2013-12-19 Arvin Chang Magnetic implants with improved anatomical compatibility
US9044281B2 (en) 2012-10-18 2015-06-02 Ellipse Technologies, Inc. Intramedullary implants for replacing lost bone
BR112015009446B1 (pt) 2012-10-29 2021-07-20 Nuvasive Specialized Orthopedics, Inc. Sistema para mudança de um ângulo de um osso de um sujeito
CN103845121A (zh) * 2012-11-30 2014-06-11 王金青 一种改进的牙钻机
US9179938B2 (en) 2013-03-08 2015-11-10 Ellipse Technologies, Inc. Distraction devices and method of assembling the same
US10226242B2 (en) 2013-07-31 2019-03-12 Nuvasive Specialized Orthopedics, Inc. Noninvasively adjustable suture anchors
US9801734B1 (en) 2013-08-09 2017-10-31 Nuvasive, Inc. Lordotic expandable interbody implant
DE102013015131B3 (de) * 2013-09-13 2015-01-08 Iml Instrumenta Mechanik Labor Gmbh Bohrnadel-Bohrfutter-Anordnung
US10751094B2 (en) 2013-10-10 2020-08-25 Nuvasive Specialized Orthopedics, Inc. Adjustable spinal implant
US9155545B2 (en) 2013-10-31 2015-10-13 Enteroptyx, Inc. Surgical drill handpiece with adjustable cutting tool guard
US10420577B2 (en) 2014-03-31 2019-09-24 Covidien Lp Apparatus and method for tissue thickness sensing
WO2015168175A1 (en) 2014-04-28 2015-11-05 Ellipse Technologies, Inc. System for informational magnetic feedback in adjustable implants
EP3193725A1 (en) * 2014-08-11 2017-07-26 Eye-life AS Ultrasonic scanner with a magnetic coupling between a motor and a mirror
US9855069B2 (en) * 2014-09-11 2018-01-02 Smith & Nephew, Inc. Magnetic coupling motor drive for surgical cutting instrument
JP6672289B2 (ja) 2014-10-23 2020-03-25 ニューベイシブ スペシャライズド オーソペディックス，インコーポレイテッド 遠隔調整可能なインタラクティブ骨再形成インプラント
JP6847341B2 (ja) 2014-12-26 2021-03-24 ニューベイシブ スペシャライズド オーソペディックス，インコーポレイテッド 伸延のためのシステム及び方法
US10238427B2 (en) 2015-02-19 2019-03-26 Nuvasive Specialized Orthopedics, Inc. Systems and methods for vertebral adjustment
CN108135589B (zh) 2015-10-16 2021-07-23 诺威适骨科专科公司 用于治疗膝关节炎的可调式装置
EP4512312A3 (en) 2015-12-10 2025-04-02 NuVasive Specialized Orthopedics, Inc. External adjustment device for distraction device
DE102015122404B4 (de) 2015-12-21 2020-06-18 Itt Bornemann Gmbh Magnet-Kupplungsanordnung und Vorrichtung mit Magnet-Kupplungsanordnung
BR112018015504A2 (pt) 2016-01-28 2018-12-18 Nuvasive Specialized Orthopedics, Inc. sistemas para transporte ósseo
WO2017139548A1 (en) 2016-02-10 2017-08-17 Nuvasive Specialized Orthopedics, Inc. Systems and methods for controlling multiple surgical variables
CN105943115B (zh) * 2016-05-31 2019-04-02 重庆西山科技股份有限公司 磁力驱动医用手柄
US10433856B2 (en) 2016-07-11 2019-10-08 Grace Medical, Inc. Surgical drill handpiece with adjustable cutting tool guard
US10945706B2 (en) 2017-05-05 2021-03-16 Biim Ultrasound As Hand held ultrasound probe
US11577097B2 (en) 2019-02-07 2023-02-14 Nuvasive Specialized Orthopedics, Inc. Ultrasonic communication in medical devices
US11589901B2 (en) 2019-02-08 2023-02-28 Nuvasive Specialized Orthopedics, Inc. External adjustment device
US11018569B1 (en) * 2020-04-14 2021-05-25 Robert Herrin Torque augmentation device
US12213708B2 (en) 2020-09-08 2025-02-04 Nuvasive Specialized Orthopedics, Inc. Remote control module for adjustable implants
US12478413B2 (en) 2021-02-23 2025-11-25 Nuvasive Specialized Orthopedics, Inc. Adjustable implant, system and methods
DE102021112609A1 (de) * 2021-05-14 2022-11-17 Aesculap Ag Magnetische Kupplung für ein in gefluteter Umgebung arbeitendes chirurgisches Instrumentenset
US11737787B1 (en) 2021-05-27 2023-08-29 Nuvasive, Inc. Bone elongating devices and methods of use
WO2023014564A1 (en) 2021-08-03 2023-02-09 Nuvasive Specialized Orthopedics, Inc. Adjustable implant
US12458417B2 (en) 2022-08-15 2025-11-04 Nuvasive Specialized Orthopedics Inc. Intermedullary lengthening implant with integrated load sensor

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2768316A (en) * 1952-01-21 1956-10-23 Neiss Oskar Permanent magnetic couplings
GB917975A (en) * 1960-02-24 1963-02-13 Smith & Sons Ltd S Improvements in or relating to driving means for instruments used in dentistry
GB1205013A (en) * 1966-09-27 1970-09-09 Smiths Industries Ltd Improvements in or relating to electric motors
FR2105395A5 (cg-RX-API-DMAC7.html) * 1970-09-04 1972-04-28 Bozet Willy
DE2136531A1 (cg-RX-API-DMAC7.html) * 1971-01-14 1972-08-03 Imc Magnetics Corp
FR2147783B1 (cg-RX-API-DMAC7.html) * 1971-06-17 1974-06-21 Mecanique Ind Int
DE2143662A1 (de) * 1971-09-01 1973-03-15 Johann Prof Dr I Kleinwaechter Getriebe insbesondere fuer grosse untersetzungsverhaeltnisse
DE2301564C3 (de) * 1973-01-12 1978-04-13 Kaltenbach & Voigt Gmbh & Co, 7950 Biberach Zahnärztliches Handstuck mit eingebautem elektrischen Kleinstmotor
FR2236475A1 (en) * 1973-07-03 1975-02-07 Medizin Labortechnik Veb K Cranked directly controlled dentist's instrument - has drive rotor in grip moving in magnetic field
US4167848A (en) * 1975-05-14 1979-09-18 Seiko Koki Kabushiki Kaisha Driving device for an electric timepiece
JPS53146057A (en) * 1977-05-20 1978-12-19 Vibrac Corp Magnetic torque coupling
DD135444A1 (de) * 1977-11-22 1979-05-09 Gerd Fleischer Zahnaerztliches winkelhandstueck mit gleichstrommotorischem direktantrieb
US4277707A (en) * 1978-04-24 1981-07-07 The Garrett Corporation High speed magnetic coupling
JPS5568873A (en) * 1978-11-16 1980-05-23 Ricoh Co Ltd Converter for magnetic turning-force
US4302693A (en) * 1978-12-26 1981-11-24 The Garrett Corporation Wedge shaped permanent magnet rotor assembly with magnet cushions

Also Published As

Publication number Publication date
DE3237197C2 (de) 1985-01-31
CH650661A5 (fr) 1985-08-15
FR2514250B1 (cg-RX-API-DMAC7.html) 1984-01-13
IT8249230A0 (it) 1982-10-08
DE3237197A1 (de) 1983-04-28
JPS5875545A (ja) 1983-05-07
US4486176A (en) 1984-12-04
GB2111320A (en) 1983-06-29
FR2514250A1 (fr) 1983-04-15
IT1149382B (it) 1986-12-03
JPS6058852B2 (ja) 1985-12-21

Similar Documents

Publication Publication Date Title
GB2111320B (en) Electric tool with integral motor
DE3278412D1 (en) Torque compensated electric motor
GB2154072B (en) Electric motor
DE3275914D1 (en) Power-driven electric hand tool
GB2123618B (en) Electric stepping motor
GB8403708D0 (en) Electric motor
GB2158296B (en) Electric motor
AU94742S (en) Electric motor
DE3263064D1 (en) Electric motors
GB2140218B (en) Electric motor
GB2162378B (en) Electric motor
GB2110005B (en) Electric motor
JPS57170049A (en) Small electric motor
GB2139015B (en) Electric motor
GB2151413B (en) Electric motor
GB2160370B (en) Electric motor
AU8494682A (en) Electric motor
GB2111763B (en) Electric motor
GB8507551D0 (en) Electric motor
GB2142192B (en) Electric motor
GB8506923D0 (en) Electric motor
GB2160369B (en) Electric motor
DE3263996D1 (en) Electrical motor
GB2139820B (en) Electric motor
GB2149224B (en) Electric motor

Legal Events

Date Code Title Description
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee