US PATENT SUBCLASS 702 / 14
.~.~ Seismology

Current as of: June, 1999
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702 /   HD   DATA PROCESSING: MEASURING, CALIBRATING, OR TESTING

1  DF  MEASUREMENT SYSTEM IN A SPECIFIC ENVIRONMENT {6}
2  DF  .~ Earth science {4}
14.~.~ Seismology {4}
15  DF  .~.~.~> Earthquake or volcanic activity
16  DF  .~.~.~> Specific display system (e.g., mapping, profiling)
17  DF  .~.~.~> Filtering or noise reduction/removal
18  DF  .~.~.~> Velocity of seismic wave

DEFINITION

Classification: 702/14

Seismology:

(under subclass 2) Subject matter comprising means for detecting and recording a seismic reflected or refracted signal representative of earth vibrations.

SEE OR SEARCH CLASS

181, Acoustics,

108+, for mechanical seismic sources and detectors and subclass 113 for seismic wave generation.

250, Radiant Energy,

253+, for geophysical exploration or irradiation by the use of invisible radiant energy.

324, Electricity: Measuring and Testing,

323+, for geophysical surface or subsurface exploration in situ which includes electrical testing. 364, Electrical Computers and Data Processing Systems,

806, for simulated geophysical models.

367, Communication, Electrical: Acoustic Wave Systems and Devices,

14+, for geophysical exploration by the use of seismic waves, subclasses 87+ for geophysical exploration by the use of compressional waves and subclasses 140+ for geophysical vibration transducers.