US PATENT SUBCLASS 250 / 269.7
.~.~.~.~ With plural gamma detectors

Current as of: June, 1999
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250 /   HD   RADIANT ENERGY

253  DF  GEOLOGICAL TESTING OR IRRADIATION {3}
256  DF  .~ Well testing apparatus and methods {9}
269.1  DF  .~.~ With source and detector {4}
269.6  DF  .~.~.~ Having neutron source and gamma detector {2}
269.7.~.~.~.~ With plural gamma detectors

DEFINITION

Classification: 250/269.7

With plural gamma detectors:

(under subclass 269.6) Subject matter wherein the means to detect radiation includes two or more gamma ray detectors.

SEE OR SEARCH THIS CLASS, SUBCLASS:

264, for well testing apparatus with particular detector

signal circuit having plural detectors.

265+, for well testing apparatus with plural detectors in general.