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Shi-chour Tsay

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  • Taoyuan Hsien, TW
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Patents Grantslast 30 patents

  • Information Patent Grant

    Hand-held electric sewing machine
    • Patent number D392293
    • Issue date Mar 17, 1998
    • Airtek Industry Corp.
    • Shi-chour Tsay
    • D15 - Machines not elsewhere specified
  • Information Patent Grant

    Portable lock stitch sewing machine
    • Patent number 5,669,318
    • Issue date Sep 23, 1997
    • Airtek Industry Corp.
    • Shi-chour Tsay
    • D05 - SEWING EMBROIDERING TUFTING