US PATENT SUBCLASS 324 / 326
.~ For small object detection or location

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.~ For small object detection or location {2}
327  DF  .~.~> Using oscillator coupled search head {1}
329  DF  .~.~> Using movable transmitter and receiver

DEFINITION

Classification: 324/326

For small object detection or location:

(under subclass 323) Subject matter relating to the detection or location in the earth of items which are relatively small compared to the size of the geoligic formation in which they are found.

(1) Note. The items may be objects such as land mines, unexploded shells, lost or buried treasure, pipes, etc.

SEE OR SEARCH THIS CLASS, SUBCLASS:

67, and 200+, for the detection of concealed objects, not below the natural surface of the earth, using magnetic or electromagnetic sensing, as the location of pipe in walls.