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WO1985003360A3 - Structure de fibres optiques et procede de fabrication - Google Patents

Structure de fibres optiques et procede de fabrication Download PDF

Info

Publication number
WO1985003360A3
WO1985003360A3 PCT/US1984/000692 US8400692W WO8503360A3 WO 1985003360 A3 WO1985003360 A3 WO 1985003360A3 US 8400692 W US8400692 W US 8400692W WO 8503360 A3 WO8503360 A3 WO 8503360A3
Authority
WO
WIPO (PCT)
Prior art keywords
fiber
optic structure
fiber optic
making
built
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.)
Ceased
Application number
PCT/US1984/000692
Other languages
English (en)
Other versions
WO1985003360A2 (fr
Inventor
Joseph L Pikulski
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.)
Raytheon Co
Original Assignee
Hughes Aircraft Co
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 Hughes Aircraft Co filed Critical Hughes Aircraft Co
Priority to DE8484902153T priority Critical patent/DE3482706D1/de
Publication of WO1985003360A2 publication Critical patent/WO1985003360A2/fr
Publication of WO1985003360A3 publication Critical patent/WO1985003360A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24Coupling light guides
    • G02B6/255Splicing of light guides, e.g. by fusion or bonding
    • G02B6/2558Reinforcement of splice joint
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03CCHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C25/00Surface treatment of fibres or filaments made from glass, minerals or slags
    • C03C25/10Coating
    • C03C25/104Coating to obtain optical fibres
    • C03C25/106Single coatings
    • C03C25/1061Inorganic coatings
    • C03C25/1063Metals
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01DMEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/26Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
    • G01D5/268Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light using optical fibres
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01FMEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/22Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
    • G01F23/28Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
    • G01F23/284Electromagnetic waves
    • G01F23/292Light, e.g. infrared or ultraviolet
    • G01F23/2921Light, e.g. infrared or ultraviolet for discrete levels
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01FMEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/22Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
    • G01F23/28Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
    • G01F23/284Electromagnetic waves
    • G01F23/292Light, e.g. infrared or ultraviolet
    • G01F23/2921Light, e.g. infrared or ultraviolet for discrete levels
    • G01F23/2922Light, e.g. infrared or ultraviolet for discrete levels with light-conducting sensing elements, e.g. prisms
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01FMEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/22Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
    • G01F23/28Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
    • G01F23/284Electromagnetic waves
    • G01F23/292Light, e.g. infrared or ultraviolet
    • G01F23/2921Light, e.g. infrared or ultraviolet for discrete levels
    • G01F23/2922Light, e.g. infrared or ultraviolet for discrete levels with light-conducting sensing elements, e.g. prisms
    • G01F23/2925Light, e.g. infrared or ultraviolet for discrete levels with light-conducting sensing elements, e.g. prisms using electrical detecting means
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01FMEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/22Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
    • G01F23/28Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
    • G01F23/284Electromagnetic waves
    • G01F23/292Light, e.g. infrared or ultraviolet
    • G01F23/2921Light, e.g. infrared or ultraviolet for discrete levels
    • G01F23/2922Light, e.g. infrared or ultraviolet for discrete levels with light-conducting sensing elements, e.g. prisms
    • G01F23/2925Light, e.g. infrared or ultraviolet for discrete levels with light-conducting sensing elements, e.g. prisms using electrical detecting means
    • G01F23/2927Light, e.g. infrared or ultraviolet for discrete levels with light-conducting sensing elements, e.g. prisms using electrical detecting means for several discrete levels, e.g. with more than one light-conducting sensing element
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01KMEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K11/00Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00
    • G01K11/32Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using changes in transmittance, scattering or luminescence in optical fibres
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/10Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
    • G02B6/14Mode converters
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24Coupling light guides
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24Coupling light guides
    • G02B6/26Optical coupling means
    • G02B6/28Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
    • G02B6/2804Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals forming multipart couplers without wavelength selective elements, e.g. "T" couplers, star couplers
    • G02B6/2821Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals forming multipart couplers without wavelength selective elements, e.g. "T" couplers, star couplers using lateral coupling between contiguous fibres to split or combine optical signals
    • G02B6/2826Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals forming multipart couplers without wavelength selective elements, e.g. "T" couplers, star couplers using lateral coupling between contiguous fibres to split or combine optical signals using mechanical machining means for shaping of the couplers, e.g. grinding or polishing
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24Coupling light guides
    • G02B6/36Mechanical coupling means
    • G02B6/38Mechanical coupling means having fibre to fibre mating means
    • G02B6/3807Dismountable connectors, i.e. comprising plugs
    • G02B6/3833Details of mounting fibres in ferrules; Assembly methods; Manufacture
    • G02B6/3855Details of mounting fibres in ferrules; Assembly methods; Manufacture characterised by the method of anchoring or fixing the fibre within the ferrule
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24Coupling light guides
    • G02B6/36Mechanical coupling means
    • G02B6/38Mechanical coupling means having fibre to fibre mating means
    • G02B6/3807Dismountable connectors, i.e. comprising plugs
    • G02B6/3873Connectors using guide surfaces for aligning ferrule ends, e.g. tubes, sleeves, V-grooves, rods, pins, balls
    • G02B6/3874Connectors using guide surfaces for aligning ferrule ends, e.g. tubes, sleeves, V-grooves, rods, pins, balls using tubes, sleeves to align ferrules
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24Coupling light guides
    • G02B6/42Coupling light guides with opto-electronic elements
    • G02B6/4201Packages, e.g. shape, construction, internal or external details
    • G02B6/4248Feed-through connections for the hermetical passage of fibres through a package wall
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24Coupling light guides
    • G02B6/36Mechanical coupling means
    • G02B6/3628Mechanical coupling means for mounting fibres to supporting carriers
    • G02B6/3632Mechanical coupling means for mounting fibres to supporting carriers characterised by the cross-sectional shape of the mechanical coupling means
    • G02B6/3636Mechanical coupling means for mounting fibres to supporting carriers characterised by the cross-sectional shape of the mechanical coupling means the mechanical coupling means being grooves
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24Coupling light guides
    • G02B6/36Mechanical coupling means
    • G02B6/38Mechanical coupling means having fibre to fibre mating means
    • G02B6/3807Dismountable connectors, i.e. comprising plugs
    • G02B6/3833Details of mounting fibres in ferrules; Assembly methods; Manufacture
    • G02B6/3854Ferrules characterised by materials

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Optics & Photonics (AREA)
  • Fluid Mechanics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Organic Chemistry (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Plasma & Fusion (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Surface Treatment Of Glass Fibres Or Filaments (AREA)
  • Mechanical Coupling Of Light Guides (AREA)
  • Electroplating And Plating Baths Therefor (AREA)
  • Optical Integrated Circuits (AREA)
  • Measuring Temperature Or Quantity Of Heat (AREA)

Abstract

Une structure de fibres optiques comprenant une fibre optique possédant un corps de matériau déposé sur la surface externe et qui est suffisamment résistant et rigide pour permettre le traitement de la fibre pour les différentes applications des fibres optiques. Le procédé de formation de la structure de fibres optiques comprend le dépôt électrolytique d'un corps de matériau sur la surface externe de la fibre optique à traiter. Un corps accumulé sur la fibre permet la création de structures de couplage. Le corps accumulé permet d'utiliser les fibres comme capteurs de niveau de liquides et autres types de dépouilleurs de mode.
PCT/US1984/000692 1984-01-20 1984-05-07 Structure de fibres optiques et procede de fabrication Ceased WO1985003360A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE8484902153T DE3482706D1 (de) 1984-01-20 1984-05-07 Faseroptische struktur und deren herstellung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US57273484A 1984-01-20 1984-01-20
US572,734 1984-01-20

Publications (2)

Publication Number Publication Date
WO1985003360A2 WO1985003360A2 (fr) 1985-08-01
WO1985003360A3 true WO1985003360A3 (fr) 1986-01-30

Family

ID=24289128

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1984/000692 Ceased WO1985003360A2 (fr) 1984-01-20 1984-05-07 Structure de fibres optiques et procede de fabrication

Country Status (5)

Country Link
EP (1) EP0168404B1 (fr)
JP (1) JPS61501054A (fr)
DE (5) DE3485676D1 (fr)
IT (1) IT1182127B (fr)
WO (1) WO1985003360A2 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0339918A3 (fr) * 1988-04-28 1990-12-05 Canadian Instrumentation And Research Limited Coupleur optique
GB2223841A (en) * 1988-08-31 1990-04-18 Red Kite Tech Parameter measurement using refractive index change
JPH02195304A (ja) * 1989-01-23 1990-08-01 Sumitomo Electric Ind Ltd 光ファイバの融着接続方法
US5026984A (en) * 1990-01-16 1991-06-25 Sperry Marine, Inc. Methods for sensing temperature, pressure and liquid level and variable ratio fiber optic coupler sensors therefor
AU2003288639A1 (en) * 2003-12-26 2005-08-12 Council Of Scientific And Industrial Research Fiber optic point temperature sensor
PL406197A1 (pl) * 2013-11-22 2015-05-25 Inphotech Spółka Z Ograniczoną Odpowiedzialnością Sposób łączenia włókien światłowodowych pokrytych warstwą przewodzącą z elementami metalowymi
US9606311B2 (en) * 2013-12-18 2017-03-28 Raytheon Company Thermal management for high-power optical fibers
US9664852B1 (en) * 2016-09-30 2017-05-30 Nanya Technology Corporation Optical waveguide having several dielectric layers and at least one metal cladding layer

Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2103683A5 (fr) * 1970-07-10 1972-04-14 Ulrich Helmut
GB1555130A (en) * 1976-10-06 1979-11-07 Krylov V M And others temperature measuring device
US4182017A (en) * 1977-03-24 1980-01-08 Lee Green Precision Industries Ltd. Method and apparatus for terminating optical fibres
US4205898A (en) * 1977-03-24 1980-06-03 Itt Industries, Incorporated Optical fiber connector
EP0021871A1 (fr) * 1979-06-08 1981-01-07 Thomson-Csf Procédé de montage d'une fibre optique dans un embout et embout obtenu par la mise en oeuvre du procédé
US4287427A (en) * 1977-10-17 1981-09-01 Scifres Donald R Liquid-level monitor
EP0038023A2 (fr) * 1980-04-11 1981-10-21 The Board Of Trustees Of The Leland Stanford Junior University Couplage directionnel à fibre optique
WO1982001365A1 (fr) * 1980-10-14 1982-04-29 Aircraft Co Hughes Guide d'onde en fibre optique recouverte d'une couche metallique
EP0078049A2 (fr) * 1981-10-28 1983-05-04 LES CABLES DE LYON Société anonyme dite: Dispositif de renforcement de la soudure en bout de deux fibres optiques
US4386822A (en) * 1980-10-10 1983-06-07 The Leland Stanford Junior University Polarizer and method
GB2113837A (en) * 1982-01-23 1983-08-10 Zeiss Stiftung Fibre optic temperature sensor
WO1983003670A1 (fr) * 1982-04-08 1983-10-27 Grossiord, Claude Dispositif pour detecter le niveau d'un liquide dans un reservoir, notamment d'un gaz liquefie dans un resevoir de briquet, et reservoir equipe d'un tel dispositif
EP0095673A1 (fr) * 1982-05-27 1983-12-07 Asea Ab Senseur à fibre optique pour mesurer des grandeurs physiques
EP0124415A1 (fr) * 1983-04-22 1984-11-07 Electricite De France Sonde optique

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51103442A (en) * 1975-03-07 1976-09-13 Fujikura Ltd Hikarifuaibano tanbushorihoho
US4033668A (en) * 1976-04-08 1977-07-05 Bell Telephone Laboratories, Incorporated Solderable glass splices, terminations and hermetic seals
JPS5922203B2 (ja) * 1978-10-06 1984-05-25 ケイディディ株式会社 光海底中継器のフイ−ドスル
DE3380453D1 (en) * 1982-06-05 1989-09-28 Amp Inc Optical fibre termination method, terminal, splice, and connector therefor

Patent Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2103683A5 (fr) * 1970-07-10 1972-04-14 Ulrich Helmut
GB1555130A (en) * 1976-10-06 1979-11-07 Krylov V M And others temperature measuring device
US4182017A (en) * 1977-03-24 1980-01-08 Lee Green Precision Industries Ltd. Method and apparatus for terminating optical fibres
US4205898A (en) * 1977-03-24 1980-06-03 Itt Industries, Incorporated Optical fiber connector
US4287427A (en) * 1977-10-17 1981-09-01 Scifres Donald R Liquid-level monitor
EP0021871A1 (fr) * 1979-06-08 1981-01-07 Thomson-Csf Procédé de montage d'une fibre optique dans un embout et embout obtenu par la mise en oeuvre du procédé
EP0038023A2 (fr) * 1980-04-11 1981-10-21 The Board Of Trustees Of The Leland Stanford Junior University Couplage directionnel à fibre optique
US4386822A (en) * 1980-10-10 1983-06-07 The Leland Stanford Junior University Polarizer and method
WO1982001365A1 (fr) * 1980-10-14 1982-04-29 Aircraft Co Hughes Guide d'onde en fibre optique recouverte d'une couche metallique
EP0078049A2 (fr) * 1981-10-28 1983-05-04 LES CABLES DE LYON Société anonyme dite: Dispositif de renforcement de la soudure en bout de deux fibres optiques
GB2113837A (en) * 1982-01-23 1983-08-10 Zeiss Stiftung Fibre optic temperature sensor
WO1983003670A1 (fr) * 1982-04-08 1983-10-27 Grossiord, Claude Dispositif pour detecter le niveau d'un liquide dans un reservoir, notamment d'un gaz liquefie dans un resevoir de briquet, et reservoir equipe d'un tel dispositif
EP0095673A1 (fr) * 1982-05-27 1983-12-07 Asea Ab Senseur à fibre optique pour mesurer des grandeurs physiques
EP0124415A1 (fr) * 1983-04-22 1984-11-07 Electricite De France Sonde optique

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Institute of Electronics and Communication Engineers of Japan International Conference on Integrated Optics and Optical Fiber Communication Technical Digest, 18-20 July 1977, Tokyo, (JP) H. TAKIMOTO et al.: "A Splicing Method with Auxiliary Fibres", pages 343-346, see Paragraph 2; figure 1 *

Also Published As

Publication number Publication date
DE3486182D1 (de) 1993-08-26
DE3485676D1 (de) 1992-05-27
DE3486273D1 (de) 1994-03-24
JPS61501054A (ja) 1986-05-22
EP0168404A1 (fr) 1986-01-22
IT1182127B (it) 1987-09-30
IT8547562A0 (it) 1985-01-18
WO1985003360A2 (fr) 1985-08-01
DE3482706D1 (de) 1990-08-16
DE3486182T2 (de) 1993-11-04
DE3486273T2 (de) 1994-05-19
DE3485392D1 (de) 1992-02-06
IT8547562A1 (it) 1986-07-18
EP0168404B1 (fr) 1990-07-11

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