Chi-Sheng Hsieh

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Ping Tung, TW

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Patents Grantslast 30 patents

Information Patent Grant
Venetian blind controller
- Patent number 4,914,360
- Issue date Apr 3, 1990
- Chi-Sheng Hsieh
- E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS