4. Acoustics
  5. Geophysical or subsurface exploration
  6. Well logging

Marvin E. Janda

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Downhole epicyclic motion orbital seismic source

Acoustics – Geophysical or subsurface exploration – Well logging
Patent

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Downhole hydraulic rotary seismic source

Acoustics – Geophysical or subsurface exploration – Well logging
Patent

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Multiple film width transport adaptor

Recorders – Record receivers and/or driving means therefor – Web
Patent

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Profile ID: LFUS-PAI-P-918852

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