TREA

Ivan L. Petrie

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  • Waterloo, IA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Method of assembling a pressure vessel
    • Patent number 4,425,698
    • Issue date Jan 17, 1984
    • Deere & Company
    • Ivan L. Petrie
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
  • Information Patent Grant

    Pressure vessel
    • Patent number 4,328,836
    • Issue date May 11, 1982
    • Deere & Company
    • Ivan L. Petrie
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL