Osamu Seo

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Komatsu, JP

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Patents Grantslast 30 patents

Information Patent Grant
Blanking machine for blanking holes in sheet of metal
- Patent number 4,241,632
- Issue date Dec 30, 1980
- Kabushiki Kaisha Komatsu Seisakusho
- Osamu Seo
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...