TREA

Major Chang

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  • Yang Mei Town, Tao Yuan Hsien, TW
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Patents Grantslast 30 patents

  • Information Patent Grant

    Structure of step exercising machine
    • Patent number 5,888,175
    • Issue date Mar 30, 1999
    • Major Chang
    • A63 - SPORTS GAMES AMUSEMENTS
  • Information Patent Grant

    Walking exerciser
    • Patent number 5,865,712
    • Issue date Feb 2, 1999
    • Major Chang
    • A63 - SPORTS GAMES AMUSEMENTS