Andy Chang

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Fong Yuan, Taichung, TW

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Patents Grantslast 30 patents

Information Patent Grant
Adjustable saw blade fastener
- Patent number 5,105,704
- Issue date Apr 21, 1992
- Andy Chang
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Structure of driving mechanism for scroll sawing machine
- Patent number 5,070,752
- Issue date Dec 10, 1991
- Andy Chang
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Transmission mechanism for scroll sawing machine
- Patent number 5,022,157
- Issue date Jun 11, 1991
- Andy Chang
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Stepless transmission scroll sawing machine with saw blade fastenin...
- Patent number 4,949,616
- Issue date Aug 21, 1990
- Andy Chang
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR