Joseph Wu

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Taoyuan, TW

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Patents Grantslast 30 patents

Information Patent Grant
Heating mechanism for zipper forming machines
- Patent number 5,698,239
- Issue date Dec 16, 1997
- Chung Shan Institute of Science & Technology
- Ray-Long Tsai
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Zipper teeth forming mechanism for zipper forming machines
- Patent number 5,688,539
- Issue date Nov 18, 1997
- Chung Shan Institute of Science & Technology
- Ray-Long Tsai
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL