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Device for feeding a reel along a track

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

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Device for guiding and tensioning supply lines

Tool driving or impacting – Advance causing or controlling means
Reexamination Certificate

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Device for reciprocating motion of a rotating drilling body of a

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

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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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Device in rock or earth drilling apparatus for rotary drilling

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

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Digger attachment

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

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Double rod cylinder feed system

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

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Downcrowding device for earth boring machines

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

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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

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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 apparatus

Tool driving or impacting – Advance causing or controlling means
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

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

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Drilling system

Tool driving or impacting – Advance causing or controlling means
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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