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Derek Chang

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  • Menlo Park, CA, US
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Patents Applicationslast 30 patents

  • Information Patent Application

    MANAGEMENT OF BIOMECHANICAL ACHIEVEMENTS
    • Publication number 20190283247
    • Publication date Sep 19, 2019
    • SEISMIC HOLDINGS, INC.
    • Andrew Robert Chang
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    MANAGEMENT OF BIOMECHANICAL ACHIEVEMENTS
    • Publication number 20190282131
    • Publication date Sep 19, 2019
    • SEISMIC HOLDINGS, INC.
    • Andrew Robert Chang
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE