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Hydraulic motor

Tool driving or impacting – Means to drive tool about an axis – Fluid motor
Reexamination Certificate

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Hydraulic top drive for wells

Tool driving or impacting – Means to drive tool about an axis – Means to hold and relatively rotate sections of tool shaft
Patent

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Hydraulic top drive for wells

Tool driving or impacting – Means to drive tool about an axis – Means to hold and relatively rotate sections of tool shaft
Patent

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Hydraulic wrench

Tool driving or impacting – Means to drive tool about an axis – Means to hold and relatively rotate sections of tool shaft
Patent

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In-tool wrench storage system

Tool driving or impacting – Means to drive tool about an axis – Electric motor
Reexamination Certificate

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Intelligent tightening spindle with integrated measurement...

Tool driving or impacting – Means to drive tool about an axis – Electric motor
Reexamination Certificate

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Interlock mechanism

Tool driving or impacting – Means to drive tool about an axis – Electric motor
Reexamination Certificate

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Intermediate and assembly assistance components for fluid...

Tool driving or impacting – Means to drive tool about an axis – Fluid motor
Reexamination Certificate

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Kelly seal

Tool driving or impacting – Means to drive tool about an axis – Means to hold and relatively rotate sections of tool shaft
Patent

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Machine tool arrangement

Tool driving or impacting – Means to drive tool about an axis – Means to hold and relatively rotate sections of tool shaft
Patent

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Machine tool having coaxial driving device

Tool driving or impacting – Means to drive tool about an axis
Reexamination Certificate

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Machine tool with a chamber for lubricant agent and a...

Tool driving or impacting – Means to drive tool about an axis
Reexamination Certificate

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Machine tool with a chamber for lubricating agent and a...

Tool driving or impacting – Means to drive tool about an axis
Reexamination Certificate

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Machining unit for machine tools, in particular for machine tool

Tool driving or impacting – Means to drive tool about an axis – Relatively fixed drive for an advancing tool
Patent

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Method and a machine for handling drill pipes

Tool driving or impacting – Means to drive tool about an axis – Means to hold and relatively rotate sections of tool shaft
Patent

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Method and apparatus for rotary power driven swivel drilling

Tool driving or impacting – Means to drive tool about an axis – Means to hold and relatively rotate sections of tool shaft
Patent

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Method of ascertaining the state inside melting furnace for radi

Tool driving or impacting – Means to drive tool about an axis
Patent

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Motor and gearbox combination

Tool driving or impacting – Means to drive tool about an axis – Gear drive
Reexamination Certificate

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Motor housing and assembly process for power tool

Tool driving or impacting – Means to drive tool about an axis – Electric motor
Reexamination Certificate

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Motor housing and assembly process for power tool

Tool driving or impacting – Means to drive tool about an axis – Electric motor
Reexamination Certificate

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