4. Tool driving or impacting
  5. Advance causing or controlling means
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Hoist pull down system for blast hole drill

Tool driving or impacting – Advance causing or controlling means – Driven flexible member causes advance
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Hydraulic drill feed units

Tool driving or impacting – Advance causing or controlling means – Motor causes or controls advance
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Hydraulic drilling machine

Tool driving or impacting – Advance causing or controlling means – Tool advances relative to drive
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Hydraulically driven kelly crowd

Tool driving or impacting – Advance causing or controlling means – Driven flexible member causes advance
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Hydraulically powered drill press

Tool driving or impacting – Advance causing or controlling means – Motor causes or controls advance
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0
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