Te-Hsi Liu

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Chupei City, TW

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Patents Grantslast 30 patents

Information Patent Grant
Dust collect device for an eraser
- Patent number 6,330,732
- Issue date Dec 18, 2001
- Te-Hsi Liu
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES

Patents Applicationslast 30 patents

Information Patent Application
Dust collecting apparatus for eraser
- Publication number 20030033686
- Publication date Feb 20, 2003
- Te-Hsi Liu
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES