Masahiro Sugiyama

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Hiratsuka, JP

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Patents Grantslast 30 patents

Information Patent Grant
Oil seal assembly with unbonded backup ring
- Patent number 4,427,206
- Issue date Jan 24, 1984
- Keeper Co., Ltd.
- Masahiro Sugiyama
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...