US PATENT SUBCLASS 367 / 37
.~ Land-reflection type

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

14  DF  SEISMIC PROSPECTING {4}
37.~ Land-reflection type {6}
38  DF  .~.~> Signal analysis and/or correction {15}
68  DF  .~.~> Display systems {4}
73  DF  .~.~> Synthetic seismograms and models
74  DF  .~.~> Format conversion
75  DF  .~.~> Shear wave
76  DF  .~.~> Telemetry {2}

DEFINITION

Classification: 367/37

Land-reflection type:

(under subclass 14) Subject matter wherein alterations in the paths of acoustic waves deflected from a discontinuity without passing through it are detected and used to represent characteristics of or the location of the discontinuity.