Katsutoshi Ichikawa

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Kanagawa, JP

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Patents Grantslast 30 patents

Information Patent Grant
Opening and closing device for retractable nib fountain pen
- Patent number 4,560,298
- Issue date Dec 24, 1985
- Pilot Man-Nen-Hitsu Kabushiki Kaisha
- Takeo Oki
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES