TREA

Chung Cheng Yu

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  • Taichung City, TW
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Patents Grantslast 30 patents

  • Information Patent Grant

    Electric stapling device
    • Patent number 6,837,416
    • Issue date Jan 4, 2005
    • Chung Cheng Yu
    • B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...
  • Information Patent Grant

    Two-piece paper fastener having rounded sides
    • Patent number 6,217,246
    • Issue date Apr 17, 2001
    • Chung Cheng Yu
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
  • Information Patent Grant

    Expanding file
    • Patent number 5,749,666
    • Issue date May 12, 1998
    • Chung Cheng Yu
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER

Patents Applicationslast 30 patents

  • Information Patent Application

    ELECTRIC STAPLING DEVICE
    • Publication number 20030160083
    • Publication date Aug 28, 2003
    • Chung Cheng Yu
    • B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...