4. Seal for a joint or juncture
  5. Seal for well apparatus
  6. For below ground apparatus

Michael E. Hooper

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Asymmetric contouring of elastomer liner on lobes in a...

Rotary expansible chamber devices – Unlike helical surfaces on relatively wobbling rotating...
Reexamination Certificate

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Composite seal for rotary cone rock bits

Seal for a joint or juncture – Seal for well apparatus – For below ground apparatus
Patent

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Lubricant system for a rotary cone rock bit

Bearings – Rotary bearing – Roller drill bit
Patent

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Lubricant system for a rotary cone rock bit

Bearings – Rotary bearing – Roller drill bit
Patent

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O-ring seal for rock bit bearings

Boring or penetrating the earth – Bit or bit element – Rolling cutter bit or rolling cutter bit element
Patent

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Profile ID: LFUS-PAI-P-722236

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