TREA

MacArthur Company

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  • St. Paul, MN, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Sound barrier window
    • Patent number 5,131,194
    • Issue date Jul 21, 1992
    • MacArthur Company
    • Robert B. Anderson
    • E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS