Yoshio Doi

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Kariya, JA

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus for forming grooved wheels
- Patent number 4,050,274
- Issue date Sep 27, 1977
- Toyoda Koki Kabushiki Kaisha
- Yoshio Doi
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...