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DOUBLE D DEVELOPMENT CO., L.L.C

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  • PORTLAND, CT, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Collapsible wheelbarrow/stretcher
    • Patent number 5,806,878
    • Issue date Sep 15, 1998
    • Double D Development Co. L.L.C.
    • David E. Mroczka
    • B60 - VEHICLES IN GENERAL