US PATENT SUBCLASS 182 / 14
.~.~ Occupant-controlled ascent or descent

Current as of: June, 1999
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182 /   HD   FIRE ESCAPE, LADDER, OR SCAFFOLD

12  DF  HORIZONTAL TRAVERSING - ACTUATION, CONTROL, OR RESPONSE {3}
13  DF  .~ Occupant actuation or control {2}
14.~.~ Occupant-controlled ascent or descent

DEFINITION

Classification: 182/14

(under subclass 13) Device further provided with occupant raising or lowering means, controlled by the occupant.