Daitoh Inc.

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Burring processing method, jig for burring processing, and burring...
- Patent number 5,673,580
- Issue date Oct 7, 1997
- Daitoh Inc.
- Yoshio Ohno
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...