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Schroeder Bros. Co., Inc.

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  • Warren, NJ, US
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  • Information Patent Grant

    Door frame fastened to an existing opening
    • Patent number 5,216,856
    • Issue date Jun 8, 1993
    • Schroeder Bros. Co., Inc.
    • Kevin Schroeder
    • E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS

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