TREA

National Advanced Drilling Machines, Inc.

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  • Houston, TX, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Hydraulic control apparatus
    • Patent number 4,188,787
    • Issue date Feb 19, 1980
    • National Advanced Drilling Machines, Inc.
    • Raymond J. Bromell
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
  • Information Patent Grant

    Vertical motion compensated crane apparatus
    • Patent number 4,179,233
    • Issue date Dec 18, 1979
    • National Advanced Drilling Machines, Inc.
    • Raymond J. Bromell
    • B66 - HOISTING LIFTING HAULING

Patents Applicationslast 30 patents

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