4. Acoustics
  5. Geophysical or subsurface exploration
  6. Seismic wave generation

William E. Lerwill

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Method and apparatus for generation of acoustic energy

Acoustics – Geophysical or subsurface exploration – Seismic wave generation
Patent

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Seismographic method and apparatus using scaled sound sources

Communications – electrical: acoustic wave systems and devices – Signal transducers – Underwater type
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Vibration generators

Acoustics – Geophysical or subsurface exploration – Seismic wave generation
Patent

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Profile ID: LFUS-PAI-P-765773

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