Helmut Zeh

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Altenstadt, DE

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Patents Grantslast 30 patents

Information Patent Grant
Channel plate assembly with parallel plates, process and fixture fo...
- Patent number 5,249,735
- Issue date Oct 5, 1993
- Metallgesellschaft Aktiengesellschaft
- Ulrich Sander
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Grant
Channel plate assembly with parallel plates, process and fixture fo...
- Patent number 5,161,611
- Issue date Nov 10, 1992
- Metallgesellschaft Aktiengesellschaft
- Ulrich Sander
- F28 - HEAT EXCHANGE IN GENERAL