4. Wells
  5. With below and above ground modification
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Wellhead isolation tool

Wells – With below and above ground modification – Above ground actuating means for below ground device
Patent

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Wellhead isolation tool

Wells – With below and above ground modification – Above ground actuating means for below ground device
Patent

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Wellhead lubricator

Wells – With below and above ground modification – Head for tool – piston or cleaner
Patent

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Wellhead with hydraulic pump actuator

Wells – With below and above ground modification – Eduction pump or plunger in well
Patent

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Wire-line controlled down-hole shut-in tool for wells

Wells – With below and above ground modification – Above ground actuating means for below ground device
Patent

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Wireline releasing device

Wells – With below and above ground modification – Above ground actuating means for below ground device
Patent

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