Hironao Yamamuro

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Patents Grantslast 30 patents

Information Patent Grant
Method of manufacturing connector bolt
- Patent number 5,810,670
- Issue date Sep 22, 1998
- Tsuda Kogyo Kabushiki Kaisha
- Hironao Yamamuro
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...