US PATENT SUBCLASS 367 / 53
.~.~.~.~ For dip

Current as of: June, 1999
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367 /   HD   COMMUNICATIONS, ELECTRICAL: ACOUSTIC WAVE SYSTEMS AND DEVICES

14  DF  SEISMIC PROSPECTING {4}
37  DF  .~ Land-reflection type {6}
38  DF  .~.~ Signal analysis and/or correction {15}
50  DF  .~.~.~ Timing correction {3}
53.~.~.~.~ For dip

DEFINITION

Classification: 367/53

For dip:

(under subclass 50) Subject matter wherein the difference in acoustic wave paths is caused by variations in the inclination of subsurface strata.