AT377965B - Verfahren zur herstellung von glasgegenstaenden aus einer rohrfoermigen glasvorform - Google Patents
Verfahren zur herstellung von glasgegenstaenden aus einer rohrfoermigen glasvorformInfo
- Publication number
- AT377965B AT377965B AT0415179A AT415179A AT377965B AT 377965 B AT377965 B AT 377965B AT 0415179 A AT0415179 A AT 0415179A AT 415179 A AT415179 A AT 415179A AT 377965 B AT377965 B AT 377965B
- Authority
- AT
- Austria
- Prior art keywords
- glass
- objects
- tubular
- producing
- preform
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL 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
- C03C23/00—Other surface treatment of glass not in the form of fibres or filaments
- C03C23/0085—Drying; Dehydroxylation
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
- C03B37/01—Manufacture of glass fibres or filaments
- C03B37/012—Manufacture of preforms for drawing fibres or filaments
- C03B37/014—Manufacture of preforms for drawing fibres or filaments made entirely or partially by chemical means, e.g. vapour phase deposition of bulk porous glass either by outside vapour deposition [OVD], or by outside vapour phase oxidation [OVPO] or by vapour axial deposition [VAD]
- C03B37/01446—Thermal after-treatment of preforms, e.g. dehydrating, consolidating, sintering
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL 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
- C03C23/00—Other surface treatment of glass not in the form of fibres or filaments
- C03C23/0095—Solution impregnating; Solution doping; Molecular stuffing, e.g. of porous glass
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL 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
- C03C3/00—Glass compositions
- C03C3/04—Glass compositions containing silica
- C03C3/06—Glass compositions containing silica with more than 90% silica by weight, e.g. quartz
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B2201/00—Type of glass produced
- C03B2201/06—Doped silica-based glasses
- C03B2201/30—Doped silica-based glasses doped with metals, e.g. Ga, Sn, Sb, Pb or Bi
- C03B2201/31—Doped silica-based glasses doped with metals, e.g. Ga, Sn, Sb, Pb or Bi doped with germanium
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B2203/00—Fibre product details, e.g. structure, shape
- C03B2203/10—Internal structure or shape details
- C03B2203/22—Radial profile of refractive index, composition or softening point
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL 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
- C03C2201/00—Glass compositions
- C03C2201/06—Doped silica-based glasses
- C03C2201/08—Doped silica-based glasses containing boron or halide
- C03C2201/10—Doped silica-based glasses containing boron or halide containing boron
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL 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
- C03C2201/00—Glass compositions
- C03C2201/06—Doped silica-based glasses
- C03C2201/20—Doped silica-based glasses containing non-metals other than boron or halide
- C03C2201/28—Doped silica-based glasses containing non-metals other than boron or halide containing phosphorus
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL 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
- C03C2201/00—Glass compositions
- C03C2201/06—Doped silica-based glasses
- C03C2201/30—Doped silica-based glasses containing metals
- C03C2201/31—Doped silica-based glasses containing metals containing germanium
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL 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
- C03C2201/00—Glass compositions
- C03C2201/06—Doped silica-based glasses
- C03C2201/30—Doped silica-based glasses containing metals
- C03C2201/32—Doped silica-based glasses containing metals containing aluminium
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL 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
- C03C2201/00—Glass compositions
- C03C2201/06—Doped silica-based glasses
- C03C2201/30—Doped silica-based glasses containing metals
- C03C2201/40—Doped silica-based glasses containing metals containing transition metals other than rare earth metals, e.g. Zr, Nb, Ta or Zn
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL 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
- C03C2201/00—Glass compositions
- C03C2201/06—Doped silica-based glasses
- C03C2201/30—Doped silica-based glasses containing metals
- C03C2201/40—Doped silica-based glasses containing metals containing transition metals other than rare earth metals, e.g. Zr, Nb, Ta or Zn
- C03C2201/42—Doped silica-based glasses containing metals containing transition metals other than rare earth metals, e.g. Zr, Nb, Ta or Zn containing titanium
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL 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
- C03C2203/00—Production processes
- C03C2203/40—Gas-phase 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
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S65/00—Glass manufacturing
- Y10S65/90—Drying, dehydration, minimizing oh groups
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Life Sciences & Earth Sciences (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Manufacture, Treatment Of Glass Fibers (AREA)
- Glass Compositions (AREA)
- Surface Treatment Of Glass (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/914,346 US4263031A (en) | 1978-06-12 | 1978-06-12 | Method of producing glass optical filaments |
Publications (2)
Publication Number | Publication Date |
---|---|
ATA415179A ATA415179A (de) | 1984-10-15 |
AT377965B true AT377965B (de) | 1985-05-28 |
Family
ID=25434227
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT0415179A AT377965B (de) | 1978-06-12 | 1979-06-11 | Verfahren zur herstellung von glasgegenstaenden aus einer rohrfoermigen glasvorform |
Country Status (21)
Country | Link |
---|---|
US (1) | US4263031A (de) |
JP (1) | JPS553394A (de) |
AT (1) | AT377965B (de) |
AU (1) | AU515354B2 (de) |
BE (1) | BE876911A (de) |
BR (1) | BR7903596A (de) |
CA (1) | CA1120727A (de) |
CH (1) | CH650481A5 (de) |
DE (1) | DE2922794C3 (de) |
DK (1) | DK197179A (de) |
ES (1) | ES481440A1 (de) |
FI (1) | FI65415C (de) |
FR (1) | FR2432001A1 (de) |
GB (1) | GB2023130B (de) |
IL (1) | IL57382A (de) |
IN (1) | IN151604B (de) |
IT (1) | IT1125368B (de) |
NL (1) | NL179808C (de) |
NO (1) | NO148106C (de) |
SE (1) | SE439480B (de) |
YU (1) | YU132279A (de) |
Families Citing this family (52)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2083806B (en) * | 1980-09-11 | 1984-08-08 | Nippon Telegraph & Telephone | Fabrication methods of doped silica glass and optical fibre preform by using the doped silica glass |
US4417914A (en) * | 1981-03-16 | 1983-11-29 | Fairchild Camera And Instrument Corporation | Method for forming a low temperature binary glass |
US4360371A (en) * | 1981-03-30 | 1982-11-23 | Corning Glass Works | Method of making polarization retaining single-mode optical waveguide |
DE3123024A1 (de) * | 1981-06-10 | 1983-01-05 | Siemens AG, 1000 Berlin und 8000 München | Verfahren zum herstellen von hochreinem siliziumdioxid fuer lichtleitfasern |
DE3206144A1 (de) * | 1982-02-20 | 1983-09-01 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Verfahren zur herstellung eines lichtwellenleiters |
DE3206176A1 (de) * | 1982-02-20 | 1983-08-25 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Verfahren zur herstellung einer vorform, aus der optische fasern ziehbar sind |
JPS599061U (ja) * | 1982-07-05 | 1984-01-20 | 米村 武 | 裁縫加工及び折目加工用接着紙 |
JPS59176376A (ja) * | 1983-03-28 | 1984-10-05 | Nitto Electric Ind Co Ltd | 感圧性接着シ−ト又はテ−プ |
JPS59188057U (ja) * | 1983-05-28 | 1984-12-13 | 山崎 鉄雄 | 除塵用不織布 |
US4629485A (en) * | 1983-09-26 | 1986-12-16 | Corning Glass Works | Method of making fluorine doped optical preform and fiber and resultant articles |
WO1985002837A1 (en) * | 1983-12-22 | 1985-07-04 | American Telephone & Telegraph Company | Fabrication of high-silica glass article |
JPS60141775A (ja) * | 1983-12-29 | 1985-07-26 | F S K Kk | 肉薄の被印刷部材用裏貼り材 |
JPS60151242A (ja) * | 1984-01-17 | 1985-08-09 | Shin Etsu Chem Co Ltd | 光伝送用ガラス母材の製造方法 |
DE3447082A1 (de) * | 1984-05-26 | 1985-12-19 | AEG-Telefunken Kabelwerke AG, Rheydt, 4050 Mönchengladbach | Verfahren zum herstellen einer vorform zum ziehen von lichtleitfasern |
JP2549615B2 (ja) * | 1984-06-18 | 1996-10-30 | 住友電気工業株式会社 | 光フアイバ用ガラス母材の焼結方法 |
JPS6186436A (ja) * | 1984-10-05 | 1986-05-01 | Sumitomo Electric Ind Ltd | 光フアイバ用母材の製造方法 |
US5364428A (en) * | 1985-03-18 | 1994-11-15 | Sumitomo Electric Industries, Ltd. | Method for producing glass preform for optical fiber |
CA1290942C (en) * | 1985-03-18 | 1991-10-22 | Michihisa Kyoto | Method for producing glass preform for optical fiber |
US5203899A (en) * | 1985-03-18 | 1993-04-20 | Sumitomo Electric Industries, Ltd. | Method for producing glass preform for optical fiber |
DE3521119A1 (de) * | 1985-06-13 | 1986-12-18 | Heraeus Quarzschmelze Gmbh, 6450 Hanau | Verfahren zur herstellung einer vorform fuer optische fasern und verwendung eines rohres aus quarzglas bzw. dotiertem quarzglas zur herstellung einer solchen vorform |
US4761170A (en) * | 1985-06-20 | 1988-08-02 | Polaroid Corporation | Method for employing plasma in dehydration and consolidation of preforms |
US4620861A (en) * | 1985-11-04 | 1986-11-04 | Corning Glass Works | Method for making index-profiled optical device |
JPH0196039A (ja) * | 1987-10-07 | 1989-04-14 | Sumitomo Electric Ind Ltd | 光フアイバ用母材の製造方法 |
DE3735532A1 (de) * | 1987-10-21 | 1989-05-03 | Rheydt Kabelwerk Ag | Verfahren zum herstellen einer vorform fuer lichtwellenleiter |
SE460274B (sv) | 1988-02-18 | 1989-09-25 | Perstorp Ab | Foerfarande foer framstaellning av ett noetningsbestaendigt, dekorativt haerdplastlaminat |
US5067975A (en) * | 1989-12-22 | 1991-11-26 | Corning Incorporated | Method of manufacturing optical waveguide fiber with titania-silica outer cladding |
US5180411A (en) * | 1989-12-22 | 1993-01-19 | Corning Incorporated | Optical waveguide fiber with titania-silica outer cladding and method of manufacturing |
CA2030748C (en) * | 1989-12-22 | 2000-08-15 | Marcella Rose Backer | Optical waveguide fiber with titania-silica outer cladding and method of manufacturing |
US5059475A (en) * | 1990-06-29 | 1991-10-22 | Photonic Integration Research, Inc. | Apparatus and method of forming optical waveguides on metalized substrates |
US5236481A (en) * | 1992-02-21 | 1993-08-17 | Corning Incorporated | Method of doping porous glass preforms |
DE4236578A1 (de) * | 1992-10-29 | 1994-06-23 | Deutsche Bundespost Telekom | Verfahren und Vorrichtung zur Vorformherstellung für Quarzglas- Lichtwellenleiter |
US5702495A (en) * | 1993-02-10 | 1997-12-30 | Nikon Corporation | Silica glass member for UV-lithography, method for silica glass production, and method for silica glass member production |
US5641333A (en) * | 1995-12-01 | 1997-06-24 | Corning Incorporated | Increasing the retention of Ge02 during production of glass articles |
DE69635662T2 (de) * | 1995-09-12 | 2006-08-10 | Corning Inc. | Verfahren und Ofen zur Herstellung von Quarzglas mit reduziertem Gehalt an Schlieren |
EP1524246A1 (de) * | 1995-09-12 | 2005-04-20 | Corning Incorporated | Vorform mit Oszillationsmustern zur Herstellung von Quarzglas |
JP3850880B2 (ja) * | 1995-09-12 | 2006-11-29 | コーニング インコーポレイテッド | 溶融シリカガラス製造用閉じ込め容器 |
US5838866A (en) | 1995-11-03 | 1998-11-17 | Corning Incorporated | Optical fiber resistant to hydrogen-induced attenuation |
US6289698B1 (en) * | 1996-08-02 | 2001-09-18 | Corning Incorporated | Method of making a fiber preform with increases in alumina concentration at radial distances |
EP0998431A1 (de) * | 1997-07-15 | 2000-05-10 | Corning Incorporated | Verminderte h2 empfindlichkeit in optischen fasern |
US6385384B1 (en) | 1999-03-15 | 2002-05-07 | Corning Incorporated | Glasses containing rare earth fluorides |
DE10012227C1 (de) * | 2000-03-14 | 2001-05-10 | Heraeus Quarzglas | Verfahren zur Herstellung eines Quarzglaskörpers |
US6467313B1 (en) | 2000-06-09 | 2002-10-22 | Corning Incorporated | Method for controlling dopant profiles |
US20020186942A1 (en) * | 2001-05-01 | 2002-12-12 | Bubnov Mikhail M. | Low-loss highly phosphorus-doped fibers for Raman amplification |
WO2002098808A1 (en) * | 2001-05-31 | 2002-12-12 | Corning Incorporated | Method of low pmd optical fiber manufacture |
EP1438267A1 (de) * | 2001-07-31 | 2004-07-21 | Corning Incorporated | Verfahren zur herstellung einer optischen faser mit niedrigen polarisationsmodendispersion |
US6723435B1 (en) * | 2001-08-28 | 2004-04-20 | Nanogram Corporation | Optical fiber preforms |
JP2003183042A (ja) * | 2001-12-14 | 2003-07-03 | Shin Etsu Chem Co Ltd | 光ファイバ用母材の製造方法及びその製造方法で製造した光ファイバ用母材 |
KR20060124678A (ko) * | 2003-12-12 | 2006-12-05 | 코닝 인코포레이티드 | 알칼리 도핑된 광섬유, 이의 예비성형체 및 이의 제조방법 |
US20070062223A1 (en) * | 2006-10-16 | 2007-03-22 | Sterlite Optical Technologies Ltd | Optical fiber having reduced polarization mode dispersion (PMD) and method for producing the same |
EP2603467B1 (de) * | 2010-08-12 | 2020-09-30 | Corning Incorporated | Behandlung von russ auf kieselsäurebasis oder eines artikels aus russ auf kieselsäurebasis |
US11554978B2 (en) * | 2013-11-27 | 2023-01-17 | Corning Incorporated | Method for reducing processing time for optical fiber preforms |
WO2016100255A1 (en) | 2014-12-16 | 2016-06-23 | Corning Incorporated | Method of making an optical fiber preform and handle for use in making of optical fiber preform |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2229229A1 (de) * | 1972-06-15 | 1974-01-10 | Siemens Ag | Verfahren zum herstellen von aus silizium oder siliziumcarbid bestehenden formkoerpern |
US3938974A (en) * | 1973-04-27 | 1976-02-17 | Macedo Pedro B | Method of producing optical wave guide fibers |
CA1020752A (en) * | 1973-04-27 | 1977-11-15 | Pedro B. Macedo | Method of producing optical wave guide fibers |
US3864113A (en) * | 1973-10-19 | 1975-02-04 | Corning Glass Works | Method of Producing Glass by Flame Hydrolysis |
US3859073A (en) * | 1973-10-19 | 1975-01-07 | Corning Glass Works | Method of producing glass by flame hydrolysis |
US4110093A (en) * | 1974-04-22 | 1978-08-29 | Macedo Pedro B | Method for producing an impregnated waveguide |
US3933454A (en) * | 1974-04-22 | 1976-01-20 | Corning Glass Works | Method of making optical waveguides |
US3980459A (en) * | 1975-12-24 | 1976-09-14 | Bell Telephone Laboratories, Incorporated | Method for manufacturing optical fibers having eccentric longitudinal index inhomogeneity |
US4030901A (en) * | 1976-07-19 | 1977-06-21 | Bell Telephone Laboratories, Incorporated | Method for drawing fibers |
US4125388A (en) * | 1976-12-20 | 1978-11-14 | Corning Glass Works | Method of making optical waveguides |
US4165223A (en) * | 1978-03-06 | 1979-08-21 | Corning Glass Works | Method of making dry optical waveguides |
-
1978
- 1978-06-12 US US05/914,346 patent/US4263031A/en not_active Expired - Lifetime
-
1979
- 1979-04-18 CA CA000325708A patent/CA1120727A/en not_active Expired
- 1979-05-11 AU AU46995/79A patent/AU515354B2/en not_active Ceased
- 1979-05-14 DK DK197179A patent/DK197179A/da not_active Application Discontinuation
- 1979-05-23 IL IL57382A patent/IL57382A/xx unknown
- 1979-05-31 CH CH5105/79A patent/CH650481A5/de not_active IP Right Cessation
- 1979-06-05 GB GB7919581A patent/GB2023130B/en not_active Expired
- 1979-06-05 YU YU01322/79A patent/YU132279A/xx unknown
- 1979-06-05 DE DE2922794A patent/DE2922794C3/de not_active Expired
- 1979-06-07 NO NO791910A patent/NO148106C/no unknown
- 1979-06-07 BR BR7903596A patent/BR7903596A/pt not_active IP Right Cessation
- 1979-06-08 JP JP7296579A patent/JPS553394A/ja active Granted
- 1979-06-11 FI FI791854A patent/FI65415C/fi not_active IP Right Cessation
- 1979-06-11 FR FR7914857A patent/FR2432001A1/fr active Granted
- 1979-06-11 ES ES481440A patent/ES481440A1/es not_active Expired
- 1979-06-11 SE SE7905068A patent/SE439480B/sv not_active IP Right Cessation
- 1979-06-11 NL NLAANVRAGE7904570,A patent/NL179808C/xx active Search and Examination
- 1979-06-11 AT AT0415179A patent/AT377965B/de not_active IP Right Cessation
- 1979-06-11 BE BE0/195689A patent/BE876911A/xx not_active IP Right Cessation
- 1979-06-12 IN IN605/CAL/79A patent/IN151604B/en unknown
- 1979-06-12 IT IT23496/79A patent/IT1125368B/it active
Also Published As
Publication number | Publication date |
---|---|
SE7905068L (sv) | 1979-12-13 |
NO791910L (no) | 1979-12-13 |
YU132279A (en) | 1982-08-31 |
ES481440A1 (es) | 1980-03-01 |
IT7923496A0 (it) | 1979-06-12 |
FI65415B (fi) | 1984-01-31 |
GB2023130A (en) | 1979-12-28 |
NL7904570A (nl) | 1979-12-14 |
FR2432001A1 (fr) | 1980-02-22 |
DE2922794B2 (de) | 1981-06-11 |
JPS553394A (en) | 1980-01-11 |
FR2432001B1 (de) | 1984-08-31 |
CA1120727A (en) | 1982-03-30 |
CH650481A5 (de) | 1985-07-31 |
ATA415179A (de) | 1984-10-15 |
IT1125368B (it) | 1986-05-14 |
SE439480B (sv) | 1985-06-17 |
JPS6124341B2 (de) | 1986-06-10 |
GB2023130B (en) | 1982-11-17 |
AU4699579A (en) | 1979-12-20 |
FI65415C (fi) | 1984-05-10 |
IL57382A0 (en) | 1979-09-30 |
DE2922794C3 (de) | 1989-07-20 |
FI791854A (fi) | 1979-12-13 |
NO148106B (no) | 1983-05-02 |
US4263031A (en) | 1981-04-21 |
BE876911A (fr) | 1979-12-11 |
BR7903596A (pt) | 1980-01-22 |
IN151604B (de) | 1983-06-04 |
AU515354B2 (en) | 1981-04-02 |
IL57382A (en) | 1984-12-31 |
DE2922794A1 (de) | 1979-12-13 |
NL179808C (nl) | 1986-11-17 |
DK197179A (da) | 1979-12-13 |
NO148106C (no) | 1983-08-10 |
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