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Bernard J. Rotter

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  • Maple Grove, MN, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Porch with recessible windows
    • Patent number 4,922,666
    • Issue date May 8, 1990
    • Bernard J. Rotter
    • E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
  • Information Patent Grant

    Collapsible sign
    • Patent number 4,866,866
    • Issue date Sep 19, 1989
    • Bernard J. Rotter
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES