187 / | HD | ELEVATOR, INDUSTRIAL LIFT TRUCK, OR STATIONARY LIFT FOR VEHICLE |
250 | DF | HAVING SPECIFIC LOAD SUPPORT DRIVE-MEANS OR ITS CONTROL {6} |
276 | DF | .~ Includes control for power source of drive-means {6} |
277 | DF | .~.~ With specific electrical component {9} |
282 | DF | .~.~.~ Actuated by load support contacting trip in shaft {1} |
283 | .~.~.~.~ Having trip at each of plural landings {1} | |
284 | DF | .~.~.~.~.~> And means for final leveling |