US PATENT SUBCLASS 33 / 544.1
.~.~.~ Including means to rotate probe

Current as of: June, 1999
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33 /   HD   GEOMETRICAL INSTRUMENTS

501  DF  GAUGE {61}
542  DF  .~ Internal {6}
544  DF  .~.~ Earth cavity or tube {2}
544.1.~.~.~ Including means to rotate probe

DEFINITION

Classification: 33/544.1

Including means to rotate probe:

(under subclass 544) Subject matter having means to turn the contact member about a longitudinal axis of the earth cavity or tube.