TREA

Alfa Metal Corp.

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  • Taipei, TW
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Patents Grantslast 30 patents

  • Information Patent Grant

    Foldable ladder
    • Patent number 5,086,872
    • Issue date Feb 11, 1992
    • Alfa Metal Corp.
    • Fan-Nan Lin
    • E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
  • Information Patent Grant

    Fixing knuckles in foldable aluminum ladder
    • Patent number 5,058,239
    • Issue date Oct 22, 1991
    • Alfa Metal Corp.
    • Dickey Lee
    • E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS