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Polyhydantoins containing sulphone groups
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Patent number 4,849,492
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Issue date Jul 18, 1989
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Bayer Aktiengesellschaft
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Gerhard Heywang
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C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
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Flexible circuits
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Patent number 4,847,139
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Issue date Jul 11, 1989
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Bayer Aktiengesellschaft
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Gerhard D. Wolf
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H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
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Metallized membrane systems
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Patent number 4,804,475
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Issue date Feb 14, 1989
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Bayer Aktiengesellschaft
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Kirkor Sirinyan
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C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
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Electrical printed circuit boards
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Patent number 4,728,560
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Issue date Mar 1, 1988
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Bayer Aktiengesellschaft
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Kirkor Sirinyan
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H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
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Laminates of polyhydantoins
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Patent number 4,702,953
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Issue date Oct 27, 1987
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Bayer Aktiengesellschaft
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Friedrich Jonas
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B32 - LAYERED PRODUCTS
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Organopalladium-II-complex compounds
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Patent number 4,622,411
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Issue date Nov 11, 1986
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Bayer Aktiengesellschaft
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Kirkor Sirinyan
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C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
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