Siegfried Schweizer

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Bamberg, DE

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Patents Grantslast 30 patents

Information Patent Grant
Method for producing sealing faces on valves
- Patent number 5,315,792
- Issue date May 31, 1994
- Robert Bosch GmbH
- Siegfried Schweizer
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Apparatus for producing sealing faces on valves
- Patent number 5,303,509
- Issue date Apr 19, 1994
- Robert Bosch GmbH
- Siegfried Schweizer
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS