US PATENT SUBCLASS 175 / 104
.~ Electric

Current as of: June, 1999
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175 /   HD   BORING OR PENETRATING THE EARTH

92  DF  WITH BELOW-GROUND TOOL DRIVE PRIME MOVER {11}
104.~ Electric {1}
105  DF  .~.~> Reciprocating

DEFINITION

Classification: 175/104

(under subclass 92) Apparatus in which the motor is of the type which converts electrical energy into mechanical motion.

SEE OR SEARCH CLASS

318, Electricity: Motive Power Systems, and the search there noted for electric motor.