US PATENT SUBCLASS 187 / 384
.~.~ Having security or priority preemption feature

Current as of: June, 1999
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187 /   HD   ELEVATOR, INDUSTRIAL LIFT TRUCK, OR STATIONARY LIFT FOR VEHICLE

380  DF  WITH CALL REGISTRATION MEANS {4}
382  DF  .~ Shared by plural load supports {4}
384.~.~ Having security or priority preemption feature

DEFINITION

Classification: 187/384

Having security or priority preemption feature:

(under subclass 382) Subject matter having means to either (a) refuse an unauthorized or accept an authorized request from an individual or (b) alter the normal precedence for processing a service request from an individual.