David Wan

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Hsin Tien, TW

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Patents Grantslast 30 patents

Information Patent Grant
Multi-setting and easy-to-install light switch controller
- Patent number 6,124,674
- Issue date Sep 26, 2000
- King-I Electromechanical Industry Co., Ltd.
- David Wan
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Timer
- Patent number 6,069,847
- Issue date May 30, 2000
- King-I Electromechanical Industry Co., Ltd.
- David Wan
- G04 - HOROLOGY