4. Communications, electrical: acoustic wave systems and devices
  5. Seismic prospecting
  6. Well logging

Ralph D'Angelo

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Key and keyway arrangement

Machine element or mechanism – Mechanical movements – Reciprocating or oscillating to or from alternating rotary
Patent

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Measurement of formation characteristics using acoustic borehole

Communications – electrical: acoustic wave systems and devices – Seismic prospecting – Well logging
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Method for measuring cement thickening times

Measuring and testing – Vibration – By mechanical waves
Patent

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Profile ID: LFUS-PAI-P-998405

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