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Adjustable pipe guide for use with an elevator and/or a spider

Wells – Above ground apparatus – With assembly or disassembly means
Reexamination Certificate

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Apparatus and method for rapid replacement of upper blowout...

Wells – Above ground apparatus – With assembly or disassembly means
Reexamination Certificate

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Apparatus for guiding wireline

Wells – Above ground apparatus – With assembly or disassembly means
Patent

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Apparatus for insertion of full bore tools into an earth borehol

Wells – Above ground apparatus – With assembly or disassembly means
Patent

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Apparatus for preventing pollution of subterranean water

Wells – Above ground apparatus – With assembly or disassembly means
Reexamination Certificate

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Apparatus for rapidly attaching an inside blowout preventer sub

Wells – Above ground apparatus – With assembly or disassembly means
Patent

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Apparatus for removing a wellhead cover from a well

Wells – Above ground apparatus – With assembly or disassembly means
Patent

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Apparatus for stabbing and threading a safety valve into a well

Wells – Above ground apparatus – With assembly or disassembly means
Patent

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Apparatus for the replacement of seals in a well ram type blow o

Wells – Above ground apparatus – With assembly or disassembly means
Patent

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