TREA

Chang Feng-Sing

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  • Taipei, TW
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  • Information Patent Grant

    Method of manufacturing blades for scissors
    • Patent number 6,021,693
    • Issue date Feb 8, 2000
    • Chang Feng-Sing
    • Chang Feng-Sing
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

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