TREA

Donald L. King

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  • Loveland, OH, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Door frame installing fixture
    • Patent number 5,704,171
    • Issue date Jan 6, 1998
    • Ingersoll-Rand Co.
    • Robert O. Ruff
    • E04 - BUILDING
  • Information Patent Grant

    Pre-finished metal door frame
    • Patent number 5,619,823
    • Issue date Apr 15, 1997
    • Ingersoll-Rand Co.
    • Robert O. Ruff
    • E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
  • Information Patent Grant

    Hinge preparation assembly for a steel door
    • Patent number 4,547,930
    • Issue date Oct 22, 1985
    • American Standard Inc.
    • Donald L. King
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES