US PATENT SUBCLASS 182 / 188
.~ Horizontally adjustable

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

187  DF  SCAFFOLD EXTERNAL OF SHAFT {1}
188.~ Horizontally adjustable

DEFINITION

Classification: 182/188

(under subclass 187) Device in which the platform may be moved or adjusted to different horizontal positions relative to the pole, tree or the like.