4. Wells
  5. With electrical means

David W. King

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Apparatus and methods for testing earth formations

Wells – With electrical means
Patent

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Apparatus for testing earth formations

Wells – With electrical means – Valve
Patent

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Bidirectional rotary brake

Brakes – Operators – Automatic
Patent

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Downhole signaling system

Boring or penetrating the earth – With signaling – indicating – testing or measuring – Tool position direction or inclination measuring or...
Patent

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Locking assembly for a rocket and launch tube

Ordnance – Rocket launching – Having means restraining rocket from movement in launching...
Patent

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Profile ID: LFUS-PAI-P-11383

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