James Hu

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Shin-Tien, TW

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Patents Grantslast 30 patents

Information Patent Grant
Pen having a constant ink supplying device
- Patent number 6,406,205
- Issue date Jun 18, 2002
- Pro Eton Corporation
- James Hu
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Grant
Writing apparatus
- Patent number 5,967,688
- Issue date Oct 19, 1999
- Pro Eton Corporation
- James Hu
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES