Mobile seismic energy source

Mobile sensor for grounds penetrating sonar

Mobile well-logging laboratory

Modular gas-powered subsea seismic source

Monopole-driven underwater sound source

Mounting and control means for full waveform seismic source

Mounting and control means for full waveform seismic source

Movable device for generating acoustic shear waves in the earth

Moving seismic source system for use in water-covered areas

Multi channel borehole seismic surveying tool

Multi-directional assemblies for sonic logging

Multi-function earthquake alerting apparatus

Multi-phase fluid flow measurement

Multiple chambered gas powered seismic source

Multiple-port, multiple-chamber, tuned air-powered subsea seismi

Multisensor ground-force measuring means for vibroseis

Multishot downhole explosive device as a seismic source