Yasushi Kuniminato

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Aichi-ken, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method of manufacturing pipe
- Patent number 6,012,315
- Issue date Jan 11, 2000
- Sango Co. Ltd.
- Yutaka Sekido
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...