TREA

in response to the amplitude of the movement of the percussion tool

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Industry

  • CPC
  • E21B44/08
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Parent Industries

EFIXED CONSTRUCTIONS E21Mining E21BEARTH DRILLING E21B44/00Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator

Current Industry

E21B44/08in response to the amplitude of the movement of the percussion tool
Industries