US PATENT SUBCLASS 414 / 596
.~.~ Ditching type

Current as of: June, 1999
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414 /   HD   MATERIAL OR ARTICLE HANDLING

592  DF  ELEVATOR OR HOIST AND LOADING OR UNLOADING MEANS THEREFOR {16}
595  DF  .~ Inclined track {4}
596.~.~ Ditching type {1}
597  DF  .~.~.~> Pivoted track

DEFINITION

Classification: 414/596

Ditching type:

(under subclass 595) Devices adapted for ditching or similar operations, typically comprising a portable and vertically adjustable trackway extending transversely of the ditch and a scoop operating on the trackway whereby the trackway serves as a templet to control the cross section of the ditch or excavation.