Magnetohydrodynamic fluid apparatus and method

Magnetohydrodynamic fluid transducer

Magnetohydrodynamic geophone

Marsh case

Marsh case for a geophone

Method and apparatus for a non-oil-filled towed array with a...

Method and apparatus for a non-oil-filled towed array with a...

Method and apparatus for controlling damping and in situ...

Method and apparatus for detecting seismic events

Method and apparatus for detection of seismic and electromagneti

Method and apparatus for determining angle of inclination of sei

Method and apparatus for gathering seismic data

Method and apparatus for installing electronic equipment below s

Method and apparatus for seismic data acquisition

Method and apparatus for the acquisition of seismic movements

Method and apparatus for the acquisition of seismic movements

Method for correcting seismic data timing functions...

Methods and systems for seismic sensors

Micro acoustic spectrum analyzer

Microfabricated acoustic transducer with a multilayer electrode