Kazuyoshi Aruga

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Okaya, JP

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Patents Grantslast 30 patents

Information Patent Grant
Combined oil ring
- Patent number 5,295,696
- Issue date Mar 22, 1994
- Teikoku Piston Ring Co., Ltd.
- Akira Harayama
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...