US PATENT SUBCLASS 324 / 329
.~.~ Using movable transmitter and receiver

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}
326  DF  .~ For small object detection or location {2}
329.~.~ Using movable transmitter and receiver

DEFINITION

Classification: 324/329

Using movable transmitter and receiver:

(under subclass 326) Subject matter wherein an antenna or coil means for generating an electromagnetic field and a separate pickup coil or antenna means responsive to the electromagnetic field as modified by the object to be detected are transported simultaneously over the area of investigation.

SEE OR SEARCH THIS CLASS, SUBCLASS:

330, for transmitters and receiver combinations used in aerial surveys.

334, for transmitter-receiver systems for geophysical prospecting in general.

SEE OR SEARCH CLASS

455, Telecommunications,

575, for portable transmitter-receiver systems.