4. Communications: electrical
  5. Selective
  6. Having electron beam device

David P. Corkhill

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Automatic gain control for seismometer recorders

Communications: electrical – Selective – Having electron beam device
Patent

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Digital drive and phase-lock for seismic vibrators

Communications – electrical: acoustic wave systems and devices – Signal transducers – Vibrator-type transmitter
Patent

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Seismic data tape recording system

Communications: electrical – Selective – Having electron beam device
Patent

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Seismic vibrator phase detector

Communications: electrical – Selective – Interrogation response
Patent

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Profile ID: LFUS-PAI-P-599829

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