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Donald E. Roberts

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  • Downers Grove, IL, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Multi-function warewashing machine
    • Patent number 5,131,419
    • Issue date Jul 21, 1992
    • Donald E. Roberts
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Flatware washing machine
    • Patent number 4,456,022
    • Issue date Jun 26, 1984
    • Donald E. Roberts
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Presorted flatware washing method and apparatus
    • Patent number 4,233,083
    • Issue date Nov 11, 1980
    • Hillside Engineering, Inc.
    • Donald E. Roberts
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...