TREA

William M. Kralovec

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  • Delavan, WI, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Pool and spa water heater
    • Patent number 5,809,942
    • Issue date Sep 22, 1998
    • William M. Kralovec
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Grant

    Pool and spa water heater
    • Patent number D397191
    • Issue date Aug 18, 1998
    • Sta-Rite Industries, Inc.
    • William M. Kralovec
    • D23 - Environmental heating and cooling
  • Information Patent Grant

    Housing coupling mechanism
    • Patent number 5,024,585
    • Issue date Jun 18, 1991
    • Sta-Rite Industries, Inc.
    • William M. Kralovec
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...