TREA

Douglas D. Hahn

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  • Austin, MN, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Vacuum chilling for processing meat
    • Patent number 4,942,053
    • Issue date Jul 17, 1990
    • Geo. A. Hormel & Company
    • Daniel L. Franklin
    • A23 - FOODS OR FOODSTUFFS THEIR TREATMENT, NOT COVERED BY OTHER CLASSES
  • Information Patent Grant

    Marking device
    • Patent number 4,286,599
    • Issue date Sep 1, 1981
    • Geo. A. Hormel & Company
    • Douglas D. Hahn
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE