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Harald Heerdegen
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Hagen, DE
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last 30 patents
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Patent Grant
Furfuryl alcohol binders, methods for their production and use
Patent number
4,634,723
Issue date
Jan 6, 1987
Rutgerswerke Aktiengesellschaft
Arno Gardziella
B22 - CASTING POWDER METALLURGY
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Patent Grant
Storage stable, heat curable mixtures of epoxy resins and method fo...
Patent number
4,568,727
Issue date
Feb 4, 1986
Rutgerswerke Aktiengesellschaft
Rolf Herzog
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...