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Issy les Moulineaux, FR
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last 30 patents
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Patent Grant
Electrochromic pane
Patent number
5,793,518
Issue date
Aug 11, 1998
Saint-Gobain Vitrage International
Christine Lefrou
B32 - LAYERED PRODUCTS
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Patent Grant
Electrochromic pane
Patent number
5,663,829
Issue date
Sep 2, 1997
Saint-Gobain Vitrage International
Christine Lefrou
B32 - LAYERED PRODUCTS