Rainer Hellberg

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Straberg-Dormagen, DE

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Patents Grantslast 30 patents

Information Patent Grant
Engine ignition system with variable spark internal duration
- Patent number 4,176,644
- Issue date Dec 4, 1979
- Robert Bosch GmbH
- Rainer Hellberg
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS