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Carboxylated molding copolymers
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Patent number 5,322,878
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Issue date Jun 21, 1994
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Belland AG
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Heinrich Deibig
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Soluble adhesive films
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Patent number 5,094,912
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Issue date Mar 10, 1992
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Belland AG
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Heinrich Deibig
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C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
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Containers of aminopolymers
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Patent number 4,990,146
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Issue date Feb 5, 1991
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Belland AG
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Heinrich Deibig
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE