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Franz J. Kupper
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Bensberg, DE
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last 30 patents
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Patent Grant
Apparatus for the extrusion of tubular bodies of synthetic-resin ma...
Patent number
4,137,028
Issue date
Jan 30, 1979
Reifenhauser KG
Paul Reitemeyer
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL