Johannes Sperman

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Bad Wimpfen, DE

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Patents Grantslast 30 patents

Information Patent Grant
Lightweight piston
- Patent number 7,954,421
- Issue date Jun 7, 2011
- KS Kolbenschmidt GmbH
- Ralf Buschbeck
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS