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Lenard W. Johnson

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  • Roseau, MN, US
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Patents Grantslast 30 patents

  • Information Patent Grant

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    • Patent number 6,067,927
    • Issue date May 30, 2000
    • Lenard W. Johnson
    • G01 - MEASURING TESTING
  • Information Patent Grant

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    • Patent number 4,829,820
    • Issue date May 16, 1989
    • LTJ Enterprises, Inc.
    • Lenard W. Johnson
    • G01 - MEASURING TESTING
  • Information Patent Grant

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    • Patent number 4,799,383
    • Issue date Jan 24, 1989
    • LTJ Enterprises, Inc.
    • Thomas C. Johnson
    • G01 - MEASURING TESTING