(under the class definition) Subject matter wherein the medium through which the waves travel comprises the earth or other planetary body and the system or element provides an indication of the characteristics or location of discontinuities (e.g., strata or foreign bodies) within the medium.
SEE OR SEARCH CLASS
181, Acoustics,
101+, for seismic prospecting systems which do not involve the handling of electric signals which contain geophysical information.
702, Data Processing: Measuring, Calibrating, or Testing,
14+, for computer and data processing system especially designed to be used with seismic prospecting systems.
