Susumu Hanyo

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Yokusuka, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method for bending a metal pipe
- Patent number 4,412,442
- Issue date Nov 1, 1983
- Dai-Ichi High Frequency Co., Ltd.
- Shumpei Kawanami
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...