Wen-Chung Hung

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Changhwa City, TW

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Patents Grantslast 30 patents

Information Patent Grant
Pulling knob assembly for venetian blind
- Patent number 5,579,819
- Issue date Dec 3, 1996
- Wen-Chung Hung
- E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS