TREA

David M. McDonald

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  • Kansas City, KS, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Poultry head pulling apparatus
    • Patent number 4,293,978
    • Issue date Oct 13, 1981
    • Simon-Johnson, Inc.
    • David M. McDonald
    • A22 - BUTCHERING MEAT TREATMENT PROCESSING POULTRY OR FISH
  • Information Patent Grant

    Poultry picking machine
    • Patent number 4,217,678
    • Issue date Aug 19, 1980
    • Simon-Johnson Inc.
    • David R. Crawford
    • A22 - BUTCHERING MEAT TREATMENT PROCESSING POULTRY OR FISH
  • Information Patent Grant

    Sealed feather picking unit
    • Patent number 4,175,302
    • Issue date Nov 27, 1979
    • Simon-Johnson, Inc.
    • Donald J. Scheier
    • A22 - BUTCHERING MEAT TREATMENT PROCESSING POULTRY OR FISH