Bernd Portmann

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Kaarst, DE

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Patents Grantslast 30 patents

Information Patent Grant
Process for checking and/or adjusting and/or assembling valves and...
- Patent number 4,782,693
- Issue date Nov 8, 1988
- Pierburg Luftfahrtgerate Union GmbH
- Rainer Heyer
- G07 - CHECKING-DEVICES
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