Piston Ring Company, Ltd.

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
High strength, heat-resistant aluminum-based alloys
- Patent number 5,053,085
- Issue date Oct 1, 1991
- Yoshida Kogyo K. K.
- Tsuyoshi Masumoto
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...

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Trademarklast 30 trademarks

Information Trademark
71323714 - SEALED POWER
- Serial number 71323714
- Registration number 303861
- Filing date Feb 1, 1932
- PISTON RING COMPANY, THE
- 7 - Machines and machine tools