Eddie Zon Tsu Chen

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Rowland Heights, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Time equipment with time zone mechanism
- Patent number 5,745,440
- Issue date Apr 28, 1998
- Eddie Zon Tsu Chen
- G04 - HOROLOGY
Information Patent Grant
Universal time equipment
- Patent number 5,708,628
- Issue date Jan 13, 1998
- Eddie Zon Tsu Chen
- G04 - HOROLOGY
Information Patent Grant
Time equipment
- Patent number 5,631,878
- Issue date May 20, 1997
- Eddie Z. Chen
- G04 - HOROLOGY