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Drilling control arrangement

Tool driving or impacting – Processes
Reexamination Certificate

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Drilling device

Tool driving or impacting – Impacting devices – With means for rotating tool
Patent

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Drilling device

Tool driving or impacting – Work cleansing – Cleansing fluid pump operated by drive
Reexamination Certificate

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Drilling device

Tool driving or impacting – Work cleansing
Patent

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Drilling device for a rock drill

Tool driving or impacting – Drive adjustable to completely change kind of drive – Adjustable to impacting device
Patent

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Drilling hammer and/or percussive hammer having a...

Tool driving or impacting – Impacting devices – With means for rotating tool
Reexamination Certificate

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Drilling hammer having an external mechanism for selectively...

Tool driving or impacting – Drive adjustable to completely change kind of drive – Adjustable to impacting device
Reexamination Certificate

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Drilling hammer or impact hammer

Tool driving or impacting – Drive adjustable to completely change kind of drive – Adjustable to impacting device
Reexamination Certificate

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Drilling implement and method for operating a drilling...

Tool driving or impacting – With vehicle support for drive
Reexamination Certificate

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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 machine

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

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Drilling machine centering arrangement

Tool driving or impacting – Processes
Patent

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Drilling machine for drilling holes in rocks

Tool driving or impacting – With indicating or signaling means
Patent

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Drilling machine positioning arrangement

Tool driving or impacting – Drive by means reacting to rotating eccentric mass
Patent

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Drilling machine with pneumatic control

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

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Drilling machine with pneumatic control

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

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Drilling mechanism optionally usable as a rotary drill or a hamm

Tool driving or impacting – Drive adjustable to completely change kind of drive – Adjustable to impacting device
Patent

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Drilling or chiseling tool with suction apparatus

Tool driving or impacting – Work cleansing – Cleansing fluid pump operated by drive
Patent

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Drilling rig

Tool driving or impacting – With vehicle support for drive – Drive structure moved to nonuse position for transport
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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