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Slide fastener
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Patent number 5,231,737
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Issue date Aug 3, 1993
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Opti Patent-, Forschungs- und Fabrikations-AG
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Alfons Frohlich
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Manufacture of slide fasteners
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Patent number 4,932,113
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Issue date Jun 12, 1990
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Opti Patent-, Forschungs- und Fabrikations-AG
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Alfons Frohlich
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A44 - HABERDASHERY JEWELLERY
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Wound-closure device and method
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Patent number 4,881,546
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Issue date Nov 21, 1989
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Opti-Patents-, Forschungs-und Fabrikations-AG
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Hans-Jurgen Kaessmann
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Slide fastener slider
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Patent number 4,662,036
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Issue date May 5, 1987
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Opti Patent-, Forschung- und Fabrikations - AG
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Alfons Frohlich
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A44 - HABERDASHERY JEWELLERY
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Woven slide fastener stringer
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Patent number 4,404,998
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Issue date Sep 20, 1983
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Opti Patent-, Forschungs- und Fabrikations-AG
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Alfons Frohlich
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D03 - WEAVING
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Woven slide-fastener stringer
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Patent number 4,381,804
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Issue date May 3, 1983
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Opti Patent-, Forschungs- und Fabrikations-AG
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Karl Griessbaum
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A44 - HABERDASHERY JEWELLERY
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Woven slide-fastener stringer
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Patent number 4,362,191
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Issue date Dec 7, 1982
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Opti Patent-, Forschungs- und Fabrikations-AG
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Alfons Frohlich
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D03 - WEAVING
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Woven slide fastener stringer
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Patent number 4,334,556
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Issue date Jun 15, 1982
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Opti Patent-, Forschungs- und Fabrikations-AG
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Alfons Frohlich
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D03 - WEAVING
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Slide fastener
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Patent number 4,099,302
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Issue date Jul 11, 1978
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OPTI Patent- Forschungs- und Fabrikations-AG
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Alfons Frohlich
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A44 - HABERDASHERY JEWELLERY
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Slide fastener
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Patent number 4,098,299
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Issue date Jul 4, 1978
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OPTI Patent- Forschungs- und Fabrikations-AG
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Alfons Frohlich
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D03 - WEAVING
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Slide fastener
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Patent number 4,084,297
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Issue date Apr 18, 1978
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OPTI Patent- Forschungs- und Fabrikations-AG
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Alfons Frohlich
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D03 - WEAVING
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Woven slide fastener unit
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Patent number 4,078,585
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Issue date Mar 14, 1978
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OPTI Patent- Forschungs- und Fabrikations-AG
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Alfons Frohlich
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D03 - WEAVING
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Slide fastener
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Patent number 4,058,145
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Issue date Nov 15, 1977
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OPTI Patent-, Forschungs- und Fabrikations-AG
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Alfons Frohlich
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A44 - HABERDASHERY JEWELLERY
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