Kun-Chuan Ho

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Yungkang City, TW

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Patents Grantslast 30 patents

Information Patent Grant
Mechanical crayon pen with an internal cartridge for multiple crayo...
- Patent number 6,899,483
- Issue date May 31, 2005
- Kun-Chuan Ho
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Grant
Pencil-shaped eraser
- Patent number 5,598,604
- Issue date Feb 4, 1997
- Kun-Chuan Ho
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES

Patents Applicationslast 30 patents

Information Patent Application
MECHANICAL CRAYON PEN WITH AN INTERNAL CARTRIDGE FOR MULTIPLE CRAYO...
- Publication number 20050135862
- Publication date Jun 23, 2005
- Kun-Chuan Ho
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES