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Patents Grants
last 30 patents
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Patent Grant
Method for the manufacture of plastic sheets of good optical quality
Patent number
5,268,136
Issue date
Dec 7, 1993
Saint-Gobain Vitrage International
Philippe Girard
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Method and apparatus for producing curved panes having a two-level...
Patent number
5,213,601
Issue date
May 25, 1993
Saint-Gobain Vitrage International
Philippe Boutier
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Grant
Method and apparatus for shaping curved glass sheets
Patent number
5,069,704
Issue date
Dec 3, 1991
Saint-Gobain Vitrage International
Philippe Boutier
C03 - GLASS MINERAL OR SLAG WOOL