Yoshihiko Kato

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Kosai, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method of forming a cylindrical boss and a die therefor
- Patent number 6,018,977
- Issue date Feb 1, 2000
- Asmo Co., Ltd
- Kazunobu Kanno
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...