US PATENT SUBCLASS 414 / 658
.~.~ Cam or abutment operated


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}
657  DF  .~ Valved {1}
658.~.~ Cam or abutment operated


DEFINITION

Classification: 414/658

Cam or abutment operated:

(under subclass 657) Elevating receptacles which include cam means or stationary abutment means in the path of movement of the receptacle to render the valve means effective.