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

John C Marshall

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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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Two-piece safety mechanism for ceiling fans

Fluid reaction surfaces (i.e. – impellers) – Specific working member mount – Distally supported on radial arm
Reexamination Certificate

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Profile ID: LFUS-PAI-P-1243192

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