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Drill depth control device

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

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Drill rod position stabilizing device

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

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Drill stem make-up and break-out system for earth drilling machi

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

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Drill string suspension tower

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

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Drilling apparatus

Tool driving or impacting – Advance causing or controlling means
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Drilling installation, more specifically for oil-drilling operat

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

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Drilling rig

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

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Drilling rig with independent table structure

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

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Drilling system

Tool driving or impacting – Advance causing or controlling means
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Drive mechanism for drill

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

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Earth auger

Tool driving or impacting – Advance causing or controlling means – Rotary drive and advance originate from same mechanical element
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Earth drilling apparatus

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

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Earth drilling apparatus

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

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Excavating tool

Tool driving or impacting – Advance causing or controlling means
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Feed shell lubrication manifold

Tool driving or impacting – Advance causing or controlling means
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Flexible shaft and roof drilling system

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

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Flexible shaft for a roof drill

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

  [ 0.00 ] – not rated yet Voters 0   Comments 0

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
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