US PATENT SUBCLASS 182 / 195
.~ Slidable nested single rung units

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182 /   HD   FIRE ESCAPE, LADDER, OR SCAFFOLD

194  DF  LADDER {10}
195.~ Slidable nested single rung units

DEFINITION

Classification: 182/195

(under subclass 194) Device wherein the ladder stiles comprise nesting, relatively slidable segments, each supporting a single rung.

SEE OR SEARCH THIS CLASS, SUBCLASS:

166+, for slidable nesting ladder sections combined with a pivoted prop.