Helmut Kehrmann

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Kaarst, DE

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Patents Grantslast 30 patents

Information Patent Grant
Method and control device for dosing flow media
- Patent number 4,313,465
- Issue date Feb 2, 1982
- Pierburg Luftfahrtgerate Union GmbH
- Heinz Holzem
- G05 - CONTROLLING REGULATING
Information Patent Grant
Volumetric measurement of a gas flow
- Patent number 4,305,302
- Issue date Dec 15, 1981
- Pierburg Luftfahrtgerate Union GmbH
- Heinz Holzem
- G01 - MEASURING TESTING