US PATENT SUBCLASS 182 / 69.4
.~ Telescopic erecting means

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

63.1  DF  HAVING TRANSPOSITIONING BASE AND ERECTING MEANS {4}
69.4.~ Telescopic erecting means

DEFINITION

Classification: 182/69.4

Telescopic erecting means:

(under subclass 63.1) Device wherein the means to raise or lower the work platform comprises concentric, tubular sections disposed in sliding relationship with one another.