4. Tool driving or impacting
  5. Advance causing or controlling means
  6. Tool advances relative to drive
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Device in rock drilling machines

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

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Drill

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

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Drill string suspension tower

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

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Drilling installation, more specifically for oil-drilling operat

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

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Drive mechanism for drill

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

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