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Aaron J. Johnson

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  • Jamestown, ND, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Lift frame for large tub grinders
    • Patent number 6,550,704
    • Issue date Apr 22, 2003
    • Duratech Industries International, Inc.
    • Aaron J. Johnson
    • B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...
  • Information Patent Grant

    Cover for tub grinder
    • Patent number 6,517,019
    • Issue date Feb 11, 2003
    • Duratech Industries International, Inc.
    • Aaron J. Johnson
    • B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...

Patents Applicationslast 30 patents

  • Information Patent Application

    Lift frame for large tub grinders
    • Publication number 20020139878
    • Publication date Oct 3, 2002
    • Aaron J. Johnson
    • B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...
  • Information Patent Application

    Cover for tub grinder
    • Publication number 20020084370
    • Publication date Jul 4, 2002
    • Aaron J. Johnson
    • B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...