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Erhard Langecker
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D-5882 Meinerzhagen 1, DT
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last 30 patents
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Patent Grant
Extrusion head
Patent number
4,038,017
Issue date
Jul 26, 1977
Battenfeld Maschinenfabriken GmbH
Erhard Langecker
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Patent Grant
Method for central injection molding
Patent number
4,035,466
Issue date
Jul 12, 1977
Erhard Langecker
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL