US PATENT SUBCLASS 324 / 336
.~.~.~ To detect transient signals

Current as of: June, 1999
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324 /   HD   ELECTRICITY: MEASURING AND TESTING

323  DF  OF GEOPHYSICAL SURFACE OR SUBSURFACE IN SITU {7}
332  DF  .~ With radiant energy or nonconductive-type transmitter {2}
334  DF  .~.~ With separate pickup {4}
336.~.~.~ To detect transient signals

DEFINITION

Classification: 324/336

To detect transient signals:

(under subclass 334) Subject matter wherein the transmitter signal is such as to cause decaying secondary signals to emanate from subsurface ore bodies and mineral deposits and the pickup means detects such decaying secondary signals.

SEE OR SEARCH THIS CLASS, SUBCLASS:

360, for electrode systems which detect transient-type signals.