Cheng-Che Hung

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Kahsiung City, TW

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Patents Grantslast 30 patents

Information Patent Grant
Shoes with air pumps
- Patent number 6,370,800
- Issue date Apr 16, 2002
- Cheng-Che Hung
- A43 - FOOTWEAR
Information Patent Grant
Safety shoe with detachable steel toe box
- Patent number 6,131,312
- Issue date Oct 17, 2000
- Cheng-Che Hung
- A43 - FOOTWEAR