US PATENT SUBCLASS 187 / 392
.~ Monitors passengers

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

391  DF  WITH MONITORING, SIGNALLING, AND INDICATING MEANS {2}
392.~ Monitors passengers

DEFINITION

Classification: 187/392

Monitors passengers:

(under subclass 391) Subject matter wherein the physical condition checked or sensed is related to an individual riding, or waiting at a landing* to ride, the load-underlying support surface.