US PATENT SUBCLASS 187 / 381
.~ Having call cancel or refuse 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}
381.~ Having call cancel or refuse feature

DEFINITION

Classification: 187/381

Having call cancel or refuse feature:

(under subclass 380) Subject matter in which the service request means has means to either nullify, reject, or prevent the processing of a service request.