TREA

Albert C. Weidman

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  • East Petersburg, PA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Seam cleaning composition
    • Patent number 5,248,443
    • Issue date Sep 28, 1993
    • Armstrong World Industries, Inc.
    • Wendell A. Ehrhart
    • C11 - ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES FATTY ACIDS...
  • Information Patent Grant

    Seam cleaning composition
    • Patent number 5,198,142
    • Issue date Mar 30, 1993
    • Armstrong World Industries, Inc.
    • Wendell A. Ehrhart
    • C11 - ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES FATTY ACIDS...