TREA

Richard H. Brautigam

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  • Newark, DE, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Sag prevention of windows
    • Patent number 6,230,457
    • Issue date May 15, 2001
    • Richard H. Brautigam
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Window locking arrangement
    • Patent number 6,068,306
    • Issue date May 30, 2000
    • Richard H. Brautigam
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Weatherstripping
    • Patent number 4,970,829
    • Issue date Nov 20, 1990
    • Richard H. Brautigam
    • E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS