Ichirou Sugiyama

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Shiki, JP

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Patents Grantslast 30 patents

Information Patent Grant
Structure for screwing object on sheet metal
- Patent number 4,659,246
- Issue date Apr 21, 1987
- Crown Screw Corporation
- Ichirou Sugiyama
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...