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Constructional material
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Patent number 4,570,622
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Issue date Feb 18, 1986
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Bayer Aktiengesellschaft
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Wulf von Bonin
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Constructional material
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Patent number 4,411,262
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Issue date Oct 25, 1983
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Bayer Aktiengesellschaft
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Wulf von Bonin
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Modified azulmic acids
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Patent number 4,385,140
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Issue date May 24, 1983
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Bayer Aktiengesellschaft
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Kuno Wagner
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C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
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Aminoplast foams
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Patent number 4,356,275
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Issue date Oct 26, 1982
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Bayer Aktiengesellschaft
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Kuno Wagner
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C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...