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Rapid fire air gun

Acoustics – Geophysical or subsurface exploration – Seismic wave generation
Patent

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Receiver array using tubing conveyed packer elements

Acoustics – Geophysical or subsurface exploration – Well logging
Reexamination Certificate

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Recoil reducing system for gas guns

Acoustics – Geophysical or subsurface exploration – Seismic wave generation
Patent

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Regenerative combustion device

Acoustics – Geophysical or subsurface exploration – Well logging
Reexamination Certificate

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Removable piston bore liner for hydraulically actuated seismic v

Acoustics – Geophysical or subsurface exploration – Seismic wave generation
Patent

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Repetitive detonation seismic surveying method and apparatus

Acoustics – Geophysical or subsurface exploration – Seismic wave generation
Patent

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Reversible rigid coupling apparatus and method for borehole seis

Acoustics – Geophysical or subsurface exploration – Seismic wave detection
Patent

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Rotary air modulator

Acoustics – Geophysical or subsurface exploration – Seismic wave generation
Patent

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Rotary seismic shear-wave source

Acoustics – Geophysical or subsurface exploration – Seismic wave generation
Patent

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Rotatable horizontal vibrator

Acoustics – Geophysical or subsurface exploration – Seismic wave generation
Patent

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Rotating eccentric weight apparatus and method for generating co

Acoustics – Geophysical or subsurface exploration – Seismic wave generation
Patent

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Rotating eccentric weight seismic sources and a seismic explorat

Acoustics – Geophysical or subsurface exploration – Seismic wave generation
Patent

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