Piston rings

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Patents Grantslast 30 patents

Information Patent Grant
Machining process for trapezoid rings with small axial dimensions,...
- Patent number 10,197,161
- Issue date Feb 5, 2019
- KS Kolbenschmidt GmbH
- Reiner Friede
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
1953666
- Patent number 1,953,666
- Issue date Apr 3, 1934
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR