US PATENT SUBCLASS 414 / 22.69
.~.~.~ On inclined derrick mounted track

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

22.51  DF  WELL PIPE OR ROD RACKING MECHANISM {3}
22.63  DF  .~ Vertical rack {3}
22.68  DF  .~.~ With laterally guided pipe or rod support {2}
22.69.~.~.~ On inclined derrick mounted track

DEFINITION

Classification: 414/22.69

On inclined derrick mounted track:

(under subclass 22.68) Apparatus wherein the supporting and moving means travels on a rail-like device which is fixed to the main support structure and is neither vertical nor horizontal.