Shinichi Tsukada

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Otaru, JP

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus for manufacturing can lid
- Patent number 6,524,048
- Issue date Feb 25, 2003
- Showa Seiki Co., Ltd.
- Shinichi Tsukada
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...