4. Mining or in situ disintegration of hard material
  5. Expansible breaking-down devices
  6. Fluid-pressed element

David Bagnell

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Abrasive resistant open cell articulated seabed mat

Hydraulic and earth engineering – Subterranean or submarine pipe or cable laying – retrieving,... – Submerging – raising – or manipulating line of pipe or cable...
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Acid gas disposal method

Wells – Processes – Separating material entering well
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Acoustic well recovery method and device

Wells – Processes – Vibrating the earth or material in or being placed in the...
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Acoustical telemetry

Boring or penetrating the earth – With signaling – indicating – testing or measuring
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Active gauge cutting structure for earth boring drill bits

Boring or penetrating the earth – Bit or bit element – Specific or diverse material
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Profile ID: LFUS-PAI-P-50458

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