Shinsuke Sato

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Yonezawa, JP

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Patents Grantslast 30 patents

Information Patent Grant
Metal tip for ball-point pen
- Patent number 5,690,442
- Issue date Nov 25, 1997
- Mitsubishi Pencil Kabushiki Kaisha
- Shinsuke Sato
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES