4. Boring or penetrating the earth
  5. With means movable relative to tool below ground to stop...
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Circulation reversing tool

Boring or penetrating the earth – With means movable relative to tool below ground to stop...
Patent

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Circulation tool

Boring or penetrating the earth – With means movable relative to tool below ground to stop... – Means comprises dropped element
Reexamination Certificate

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Core barrel apparatus

Boring or penetrating the earth – With means movable relative to tool below ground to stop... – In sample receiver removable through below-ground tool shaft
Patent

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Core barrel for obtaining and retrieving subterranean formation

Boring or penetrating the earth – With means movable relative to tool below ground to stop... – Movable to seal sample receiver at bore bottom pressure
Patent

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Core drilling latch assembly

Boring or penetrating the earth – With means movable relative to tool below ground to stop... – In sample receiver removable through below-ground tool shaft
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0
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