C. Y. Chang

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Hsin Chu, TW

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Patents Grantslast 30 patents

Information Patent Grant
U-turn high capacity sheet feeder for fax machine or printers
- Patent number 5,743,519
- Issue date Apr 28, 1998
- Joseph Chang
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Mobile copy machine extension unit
- Patent number 5,523,821
- Issue date Jun 4, 1996
- Advanced Scientific Corp.
- Joseph Chang
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY