US PATENT SUBCLASS 175 / 172
.~ With endless flexible conveyer

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

170  DF  WITH TOOL DRIVE PRIME MOVER OR ABOVE-GROUND MECHANICAL MOTION CONVERTING DRIVE MEANS {5}
172.~ With endless flexible conveyer

DEFINITION

Classification: 175/172

(under subclass 170) Apparatus including material transport elements mounted to travel in a circuitous path on a flexible or articulated endless means, and generally for the purpose of conveying cuttings above ground.

SEE OR SEARCH THIS CLASS, SUBCLASS:

89, for tool element on continuously driven flexible or articulated endless member.

SEE OR SEARCH CLASS

198, Conveyors: Power-Driven, appropriate subclasses for power-driven endless conveyors.