NL7802860A - Registratiedragerlichaam en registratiedrager voor optische informatie en inrichting voor het inschrijven en uitlezen. - Google Patents
Registratiedragerlichaam en registratiedrager voor optische informatie en inrichting voor het inschrijven en uitlezen.Info
- Publication number
- NL7802860A NL7802860A NL7802860A NL7802860A NL7802860A NL 7802860 A NL7802860 A NL 7802860A NL 7802860 A NL7802860 A NL 7802860A NL 7802860 A NL7802860 A NL 7802860A NL 7802860 A NL7802860 A NL 7802860A
- Authority
- NL
- Netherlands
- Prior art keywords
- registration
- read out
- optical information
- carrier
- registration carrier
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/2407—Tracks or pits; Shape, structure or physical properties thereof
- G11B7/24085—Pits
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
- G11B27/02—Editing, e.g. varying the order of information signals recorded on, or reproduced from, record carriers
- G11B27/022—Electronic editing of analogue information signals, e.g. audio or video signals
- G11B27/026—Electronic editing of analogue information signals, e.g. audio or video signals on discs
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/007—Arrangement of the information on the record carrier, e.g. form of tracks, actual track shape, e.g. wobbled, or cross-section, e.g. v-shaped; Sequential information structures, e.g. sectoring or header formats within a track
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
- G11B7/081—Disposition or mounting of heads or light sources relatively to record carriers for time base error correction by moving the light beam
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
- G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
- G11B7/0901—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following only
- G11B7/0903—Multi-beam tracking systems
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
- G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
- G11B7/0938—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following servo format, e.g. guide tracks, pilot signals
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
- G11B7/14—Heads, e.g. forming of the optical beam spot or modulation of the optical beam specially adapted to record on, or to reproduce from, more than one track simultaneously
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Recording Or Reproduction (AREA)
Priority Applications (13)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL7802860A NL7802860A (nl) | 1978-03-16 | 1978-03-16 | Registratiedragerlichaam en registratiedrager voor optische informatie en inrichting voor het inschrijven en uitlezen. |
CA000323251A CA1143473A (fr) | 1978-03-16 | 1979-03-12 | Support d'enregistrement a zones d'asservissement pour corriger la vitesse |
GB7908770A GB2016747B (en) | 1978-03-16 | 1979-03-13 | Optical record and read/write apparatus |
DE2909770A DE2909770C2 (de) | 1978-03-16 | 1979-03-13 | Aufzeichnungsträgerkörper, der aus einem runden scheibenförmigen Substrat besteht, und Vorrichtung zum Einschreiben in einen und Auslesen aus einem solchen Aufzeichnungsträger |
CH2382/79A CH662666A5 (de) | 1978-03-16 | 1979-03-13 | Aufzeichnungstraegerkoerper fuer optische daten und vorrichtung zum einschreiben von daten in den aufzeichnungstraegerkoerper. |
SE7902223A SE444872B (sv) | 1978-03-16 | 1979-03-13 | Uppteckningsberarkropp och uppteckningsberare for optiskt inskrivningsbar och avlesningsbar information och med ett optiskt detekterbart servospar samt apparater for informationsinskrivning i uppteckningsberarkroppen oc |
IT20945/79A IT1111723B (it) | 1978-03-16 | 1979-03-13 | Corpo di supporto di registrazioni ed elemento di supporto di registrazioni per informazioni ottiche ed apparato per la registrazione e la lettura di tali informazioni |
FR7906753A FR2420183B1 (fr) | 1978-03-16 | 1979-03-16 | Corps porteur d'enregistrement et porteur d'enregistrement pour de l'information optique et dispositif d'enregistrement et de lecture |
BE0/194083A BE874918A (fr) | 1978-03-16 | 1979-03-16 | Corps porteur d'enregistrement et porteur d'enregistrement pour de l'information optique et dispositif d'enregistrement et de lecture |
JP3166179A JPS54130103A (en) | 1978-03-16 | 1979-03-16 | Device for writing and reading information on recording carrier body and recording carrier body |
US07/131,316 US4870508A (en) | 1978-03-16 | 1980-03-18 | Record carrier body with an optical servo track and optical apparatus for writing and reading information from the carrier |
JP61191575A JPS6251043A (ja) | 1978-03-16 | 1986-08-15 | 光学記録キヤリヤに情報を書込みかつ読取る装置 |
US07/318,029 US4972403A (en) | 1978-03-16 | 1989-03-02 | Record carrier body with an optical servo track and optical apparatus for writing and reading information from the carrier |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL7802860A NL7802860A (nl) | 1978-03-16 | 1978-03-16 | Registratiedragerlichaam en registratiedrager voor optische informatie en inrichting voor het inschrijven en uitlezen. |
Publications (1)
Publication Number | Publication Date |
---|---|
NL7802860A true NL7802860A (nl) | 1979-09-18 |
Family
ID=19830504
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL7802860A NL7802860A (nl) | 1978-03-16 | 1978-03-16 | Registratiedragerlichaam en registratiedrager voor optische informatie en inrichting voor het inschrijven en uitlezen. |
Country Status (11)
Country | Link |
---|---|
US (2) | US4870508A (fr) |
JP (2) | JPS54130103A (fr) |
BE (1) | BE874918A (fr) |
CA (1) | CA1143473A (fr) |
CH (1) | CH662666A5 (fr) |
DE (1) | DE2909770C2 (fr) |
FR (1) | FR2420183B1 (fr) |
GB (1) | GB2016747B (fr) |
IT (1) | IT1111723B (fr) |
NL (1) | NL7802860A (fr) |
SE (1) | SE444872B (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0019379A1 (fr) * | 1979-05-14 | 1980-11-26 | Xerox Corporation | Support d'enregistrement pour mémoire optique digitale et mémoire comportant un tel support |
Families Citing this family (52)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL7902542A (nl) * | 1979-04-02 | 1980-10-06 | Philips Nv | Optische registratie-inrichting met meerdere ablatieve registreerlagen. |
JPS56117341A (en) * | 1980-02-18 | 1981-09-14 | Toshiba Corp | Optical disk and its manufacture |
JPS5730132A (en) * | 1980-07-29 | 1982-02-18 | Sharp Corp | Magnetooptical storage device |
FR2490858B1 (fr) * | 1980-09-25 | 1986-04-04 | Rca Corp | Milieu d'enregistrement optique a sensibilite variable et disque contenant de l'information, realise a l'aide d'un tel milieu |
US4467467A (en) * | 1980-10-20 | 1984-08-21 | Discovision Associates | Video recorder-playback machine |
US4383311A (en) * | 1980-10-21 | 1983-05-10 | Rca Corporation | Optical recording medium and information record with indented overcoat |
JPS5774853A (en) * | 1980-10-23 | 1982-05-11 | Sharp Corp | Magnetic optical recording device |
JPS57120253A (en) * | 1981-01-14 | 1982-07-27 | Sharp Corp | Magnetooptical storage elemen |
JPS57158047A (en) * | 1981-03-24 | 1982-09-29 | Toshiba Corp | Optical information recording medium |
FR2504301A1 (fr) * | 1981-04-15 | 1982-10-22 | Thomson Csf | Support d'informations mobile et dispositif d'enregistrement-lecture comprenant un tel support |
FR2504765A1 (fr) * | 1981-04-27 | 1982-10-29 | Thomson Csf | Dispositif d'enregistrement-lecture comprenant un support mobile d'informations du type comportant une piste pregravee |
JPH0675297B2 (ja) * | 1981-08-28 | 1994-09-21 | 株式会社日立製作所 | 光学的情報記録再生装置 |
US4412743A (en) * | 1981-09-08 | 1983-11-01 | Discovision Associates | Off-axis light beam defect detector |
US4428069A (en) * | 1981-12-21 | 1984-01-24 | Burroughs Corporation | Apparatus for preformatting an optical disk |
US4428075A (en) * | 1981-12-21 | 1984-01-24 | Burroughs Corporation | Methods of preformatting an optical disk |
US4462095A (en) * | 1982-03-19 | 1984-07-24 | Magnetic Peripherals Inc. | Moving diffraction grating for an information track centering system for optical recording |
WO1984001849A1 (fr) * | 1982-11-01 | 1984-05-10 | Storage Technology Partners | Systeme d'asservissement precis et grossier pour l'acces et le suivi de piste d'un disque optique |
US4562567A (en) * | 1982-11-12 | 1985-12-31 | North American Philips Corporation | Apparatus for controlling the write beam in an optical data recording system |
US4578788A (en) * | 1983-06-02 | 1986-03-25 | International Business Machines Corporation | High performance optical storage medium with separate mechanical servo tracks embedded within the medium |
US4703408A (en) * | 1983-11-28 | 1987-10-27 | Hitachi, Ltd. | Apparatus and record carrier for optically writing information |
JPS60137185A (ja) * | 1983-12-26 | 1985-07-20 | Sony Corp | カメラ |
US4598393A (en) * | 1984-04-06 | 1986-07-01 | Drexler Technology Corporation | Three-beam optical servo tracking system with two-track parallel readout |
JPS59218645A (ja) * | 1984-05-11 | 1984-12-08 | Hitachi Ltd | 光デイスク |
NL8500153A (nl) * | 1985-01-22 | 1986-08-18 | Philips Nv | Registratiedragerlichaam voorzien van een reliefstruktuur van optisch detekteerbare servospoorgedeelten en sektoradressen en inrichting voor het aanbrengen van deze struktuur. |
JP2565884B2 (ja) * | 1986-12-25 | 1996-12-18 | シャープ株式会社 | 磁気光学記憶素子 |
JPS62270039A (ja) * | 1987-04-03 | 1987-11-24 | Toshiba Corp | 光デイスクの製造方法 |
JPS62295235A (ja) * | 1987-05-13 | 1987-12-22 | Hitachi Ltd | 光ディスク |
JPS62295238A (ja) * | 1987-05-20 | 1987-12-22 | Sharp Corp | 磁気光学記憶素子 |
JPS63306535A (ja) * | 1987-06-05 | 1988-12-14 | Sharp Corp | 光学的記録再生装置 |
JP2643159B2 (ja) * | 1987-07-31 | 1997-08-20 | ソニー株式会社 | 光学的記録方法 |
JPH01277327A (ja) * | 1988-04-28 | 1989-11-07 | Toshiba Corp | 光学式記録媒体及び光学式情報記録装置 |
JPH02292744A (ja) * | 1989-05-02 | 1990-12-04 | Teac Corp | 光ディスク及び光ディスク装置 |
JPH0478034A (ja) * | 1990-05-15 | 1992-03-12 | Toshiba Corp | 光情報記録媒体及び光情報記録再生装置 |
US5268887A (en) * | 1990-05-15 | 1993-12-07 | Kabushiki Kaisha Toshiba | Optical recording medium having offset-compensating areas |
US5491678A (en) * | 1990-05-25 | 1996-02-13 | Hitachi, Ltd. | Method and apparatus for recording/reproducing information data in a two-dimensional format |
JP3507956B2 (ja) * | 1993-10-13 | 2004-03-15 | 株式会社日立製作所 | 光ディスク |
US5835469A (en) * | 1990-05-25 | 1998-11-10 | Hitachi, Ltd. | High-density information recording/reproducing method |
US5461602A (en) * | 1990-09-14 | 1995-10-24 | Matsushita Electric Industrial Co., Ltd. | Optical recording and reproducing method and apparatus using light beams of two different wavelenghts |
JP3273444B2 (ja) * | 1992-09-21 | 2002-04-08 | 株式会社ニコン | 書込み可能な光ディスク |
DE19580491T1 (de) * | 1994-03-25 | 1996-05-09 | Hitachi Ltd | Verfahren zum Aufzeichnen von Information mit hoher Dichte und zum Abspielen derselben |
KR20000075815A (ko) * | 1997-02-28 | 2000-12-26 | 번스타인 리차드 | 디스크 내부 장치 |
US7088650B1 (en) * | 1999-08-23 | 2006-08-08 | Worthington Mark O | Methods and apparatus for optical disc data acquisition using physical synchronization markers |
WO2002084302A2 (fr) * | 2000-11-08 | 2002-10-24 | Burstein Technologies, Inc. | Systeme interactif pour l'analyse d'echantillons biologiques et le traitement de l'information y relative et son utilisation |
WO2002047071A2 (fr) * | 2000-12-08 | 2002-06-13 | Burstein Technologies, Inc. | Detection d'analytes au moyen de disques optiques a couches de donnees multiples |
US6760298B2 (en) * | 2000-12-08 | 2004-07-06 | Nagaoka & Co., Ltd. | Multiple data layer optical discs for detecting analytes |
US6706415B2 (en) * | 2000-12-28 | 2004-03-16 | Copeland Corporation | Marine coating |
EP1356465B8 (fr) * | 2001-01-24 | 2006-01-11 | Koninklijke Philips Electronics N.V. | Commande de positionnement pour tete de lecture et/ou d'enregistrement |
US20020171838A1 (en) * | 2001-05-16 | 2002-11-21 | Pal Andrew Attila | Variable sampling control for rendering pixelization of analysis results in a bio-disc assembly and apparatus relating thereto |
EP1470551A2 (fr) * | 2002-01-28 | 2004-10-27 | Burstein Technologies, Inc. | Procedes et appareil pour le declenchement logique |
CA2471017A1 (fr) | 2002-01-31 | 2003-08-07 | Burstein Technologies, Inc. | Procede de declenchement par le biais de rainures de disque, et systeme et disques d'analyse optique associes |
JP4162518B2 (ja) | 2003-03-17 | 2008-10-08 | Tdk株式会社 | ホログラム記録再生方法及びホログラム記録媒体 |
JP3924549B2 (ja) * | 2003-04-23 | 2007-06-06 | Tdk株式会社 | ホログラム記録再生方法及び装置 |
Family Cites Families (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1183948B (de) * | 1961-01-12 | 1964-12-23 | Telefunken Patent | Speicher, insbesondere Mikrospeicher fuer Informationen |
US3307157A (en) * | 1964-01-02 | 1967-02-28 | Xerox Corp | Light scan recording and readout |
US3337718A (en) * | 1964-01-02 | 1967-08-22 | Xerox Corp | Light scan recording and readout |
US3365706A (en) * | 1964-04-15 | 1968-01-23 | Gilbert W. King | Photo-optical data storage and retrieval system employing error detection and error location identification components |
US3454777A (en) * | 1964-05-14 | 1969-07-08 | Sequential Electronic Systems | Measurement of object displacements and velocities |
US3438050A (en) * | 1965-01-06 | 1969-04-08 | Itek Corp | Laser data recorder |
US3510658A (en) * | 1967-11-06 | 1970-05-05 | Ibm | Light beam servoing system with memory element having wavelength-discrimi-nating guide and data tracks |
FR2019358A1 (fr) * | 1968-08-21 | 1970-07-03 | Optical Devices Cy | |
GB1302370A (fr) * | 1969-12-22 | 1973-01-10 | ||
US3781479A (en) * | 1970-01-26 | 1973-12-25 | Lahr J | Method and apparatus for transmitting time compressed audio information |
US3673412A (en) * | 1970-03-02 | 1972-06-27 | Trw Inc | Radiant energy beam scanning method and apparatus |
US3636526A (en) * | 1970-06-08 | 1972-01-18 | Energy Conversion Devices Inc | Information-recording system employing amorphous materials |
DE2048431B2 (de) * | 1970-08-05 | 1974-01-10 | Ted Bildplatten Ag Aeg-Telefunkenteldec, Zug (Schweiz) | Verfahren zum Aufzeichnen von Informationen, vorzugsweise von solchen großer Bandbreite im Bereich von mehreren MHz, auf einem Träger |
NL174591C (nl) * | 1973-02-09 | 1984-07-02 | Philips Nv | Schijfvormig registratiedragerlichaam. |
NL7301932A (fr) * | 1973-02-12 | 1974-08-14 | ||
CA1013854A (en) * | 1973-02-20 | 1977-07-12 | John S. Winslow | Videodisc mastering system |
JPS5841710B2 (ja) * | 1973-03-16 | 1983-09-13 | ソニー株式会社 | ジヨウホウシンゴウキロクホウホウ |
JPS5842526B2 (ja) * | 1973-05-25 | 1983-09-20 | キヤノン株式会社 | キロクタンタイ |
US4084185A (en) * | 1974-02-12 | 1978-04-11 | U.S. Philips Corporation | Record carrier on which information is stored in an optically readable structure |
DE2522405C2 (de) * | 1975-05-21 | 1982-04-15 | Philips Patentverwaltung Gmbh, 2000 Hamburg | Optisches Mehrkanal-Plattenspeichersystem zum Speichern von digitaler Information |
DE2608715C2 (de) * | 1976-03-03 | 1984-03-15 | Philips Patentverwaltung Gmbh, 2000 Hamburg | Optisches System zum Speichern und Wiedergewinnen digitaler Daten |
CA1130456A (fr) * | 1976-04-08 | 1982-08-24 | Hisao Kinjo | Systeme d'enregistrement de signaux d'information |
DE2615838C2 (de) * | 1976-04-10 | 1985-02-07 | Philips Patentverwaltung Gmbh, 2000 Hamburg | Vorrichtung zur Positionsregelung eines Schreib-Lesekopfes für Datenträger mit einer Magnetspeicherschicht |
US4176377A (en) * | 1977-11-10 | 1979-11-27 | Eastman Kodak Company | Video disc configuration |
NL187413C (nl) * | 1978-03-16 | 1991-09-16 | Philips Nv | Registratiedragerlichaam, ingeschreven registratiedrager, werkwijze voor het inschrijven van het registratiedragerlichaam en inrichting voor het uitvoeren van de werkwijze en voor het uitlezen van een ingeschreven registratiedrager. |
-
1978
- 1978-03-16 NL NL7802860A patent/NL7802860A/xx not_active Application Discontinuation
-
1979
- 1979-03-12 CA CA000323251A patent/CA1143473A/fr not_active Expired
- 1979-03-13 DE DE2909770A patent/DE2909770C2/de not_active Expired
- 1979-03-13 CH CH2382/79A patent/CH662666A5/de not_active IP Right Cessation
- 1979-03-13 GB GB7908770A patent/GB2016747B/en not_active Expired
- 1979-03-13 SE SE7902223A patent/SE444872B/sv not_active IP Right Cessation
- 1979-03-13 IT IT20945/79A patent/IT1111723B/it active
- 1979-03-16 JP JP3166179A patent/JPS54130103A/ja active Granted
- 1979-03-16 FR FR7906753A patent/FR2420183B1/fr not_active Expired
- 1979-03-16 BE BE0/194083A patent/BE874918A/fr not_active IP Right Cessation
-
1980
- 1980-03-18 US US07/131,316 patent/US4870508A/en not_active Expired - Lifetime
-
1986
- 1986-08-15 JP JP61191575A patent/JPS6251043A/ja active Granted
-
1989
- 1989-03-02 US US07/318,029 patent/US4972403A/en not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0019379A1 (fr) * | 1979-05-14 | 1980-11-26 | Xerox Corporation | Support d'enregistrement pour mémoire optique digitale et mémoire comportant un tel support |
Also Published As
Publication number | Publication date |
---|---|
DE2909770A1 (de) | 1979-09-20 |
IT7920945A0 (it) | 1979-03-13 |
GB2016747A (en) | 1979-09-26 |
JPH0381209B2 (fr) | 1991-12-27 |
US4870508A (en) | 1989-09-26 |
SE7902223L (sv) | 1979-09-17 |
JPS54130103A (en) | 1979-10-09 |
FR2420183B1 (fr) | 1988-04-29 |
JPS6259373B2 (fr) | 1987-12-10 |
US4972403A (en) | 1990-11-20 |
DE2909770C2 (de) | 1987-05-07 |
CA1143473A (fr) | 1983-03-22 |
GB2016747B (en) | 1982-09-08 |
BE874918A (fr) | 1979-09-17 |
FR2420183A1 (fr) | 1979-10-12 |
CH662666A5 (de) | 1987-10-15 |
JPS6251043A (ja) | 1987-03-05 |
SE444872B (sv) | 1986-05-12 |
IT1111723B (it) | 1986-01-13 |
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