TREA

Frank J. Caldwell

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  • West Carrollton, OH, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Heat control for a dishwashing machine
    • Patent number 4,689,089
    • Issue date Aug 25, 1987
    • Hobart Corporation
    • Mark E. Eberhardt
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Tray washer apparatus
    • Patent number 4,018,239
    • Issue date Apr 19, 1977
    • Hobart Corporation
    • Frank J. Caldwell
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...