Akane Nishio

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Aqueous ballpoint pen refill and process for producing the same
- Patent number 6,056,463
- Issue date May 2, 2000
- The Sailor Pen Co. Ltd.
- Akane Nishio
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES