Tokiyoshi Kagawa

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus for manufacturing a slat for a shutter
- Patent number 4,343,171
- Issue date Aug 10, 1982
- Sanwa Shutter Corporation
- Tokiyoshi Kagawa
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...