Hans-Dieter Knopfel

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Frankenthal, DE

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Patents Grantslast 30 patents

Information Patent Grant
Impeller for centrifugal pumps
- Patent number 4,208,169
- Issue date Jun 17, 1980
- Klein, Schanzlin & Becker Aktiengesellschaft
- Karl-Heinz Becker
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...