Yoshihisa Ohashi

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Takarazuka, JP

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Patents Grantslast 30 patents

Information Patent Grant
Process for manufacturing clad metal tubing
- Patent number 5,056,209
- Issue date Oct 15, 1991
- Sumitomo Metal Industries, Ltd.
- Yoshihisa Ohashi
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...