Susumu Ishikawa

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Clad steel plate
- Patent number 5,910,377
- Issue date Jun 8, 1999
- Shinsozaihanbai Kabushiki Kaisha
- Katsuro Tsukamoto
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...