4. Communications, electrical: acoustic wave systems and devices
  5. Seismic prospecting
  6. Land-reflection type

Carl Arthur Robbins

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Acoustic logging while drilling tool to determine bed boundaries

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

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Acoustic Transducer for LWD tool

Electrical generator or motor structure – Non-dynamoelectric – Piezoelectric elements and devices
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Standoff compensation for acoustic logging while drilling system

Communications – electrical: acoustic wave systems and devices – Seismic prospecting – Land-reflection type
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Profile ID: LFUS-PAI-P-286336

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