TREA

Leonard J. Hartmann

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  • St. Louis, MO, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Swivel connection
    • Patent number 5,636,877
    • Issue date Jun 10, 1997
    • Dyna Controls Corporation
    • Michael J. Purvis
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Quick-connect-disconnect non-mar coupling
    • Patent number 5,451,031
    • Issue date Sep 19, 1995
    • Dynaquip Controls Corporation
    • Michael J. Purvis
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Blow gun assembly
    • Patent number 4,919,334
    • Issue date Apr 24, 1990
    • Dynaquip Controls Corporation
    • Leonard J. Hartmann
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...