TREA

Donald R. Dupras

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  • Alto Loma, CA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Wall furnace
    • Patent number 4,784,110
    • Issue date Nov 15, 1988
    • Williams Furnace Company
    • Stanley F. Skafte
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Grant

    Wall-hung cabinet arrangement
    • Patent number 4,155,609
    • Issue date May 22, 1979
    • Williams Furnace Company
    • Stanley F. Skafte
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...