TREA

Yin-Hsi Liao

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  • Changhua County, TW
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Patents Grantslast 30 patents

  • Information Patent Grant

    Valve device for toy gun
    • Patent number 10,514,230
    • Issue date Dec 24, 2019
    • Guay Guay Trading Co., Ltd.
    • Yin-Hsi Liao
    • F41 - WEAPONS

Patents Applicationslast 30 patents