US PATENT SUBCLASS 702 / 18
.~.~.~ Velocity of seismic wave

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  DF  .~.~ Seismology {4}
18.~.~.~ Velocity of seismic wave

DEFINITION

Classification: 702/18

Velocity of seismic wave:

(under subclass 14) Subject matter comprising means for measuring seismic wave parameter over time to compute speed of propagation of seismic wave.