TREA

Heinz Hessel

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  • Flaesheim, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Hydraulic ram
    • Patent number 4,549,469
    • Issue date Oct 29, 1985
    • Gewerkschaft Eisenhutte Westfalia
    • Karl-Heinz Plester
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
  • Information Patent Grant

    Telescopic support props for mineral mining
    • Patent number 4,523,512
    • Issue date Jun 18, 1985
    • Gewerkschaft Eisenhutte Westfalia
    • Heinz Hessel
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
  • Information Patent Grant

    Hydraulic ram
    • Patent number 4,457,212
    • Issue date Jul 3, 1984
    • Gewerkschaft Eisenhutte Westfalia
    • Eberhart Unger
    • E21 - EARTH DRILLING MINING