US PATENT SUBCLASS 182 / 65.1
.~.~ About vertical axis


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}
64.1  DF  .~ Ladder pivotably mounted on transpositioning base (e.g., on vehicle) {2}
65.1.~.~ About vertical axis {3}
66.1  DF  .~.~.~> Extension ladder (i.e., ladder having sliding section) {2}
67.4  DF  .~.~.~> Folding ladder
67.5  DF  .~.~.~> Having screw rod for erecting ladder about horizontal pivot


DEFINITION

Classification: 182/65.1

About vertical axis:

(under subclass 64.1) Device wherein the supporting base (e.g., turntable) rotates about a vertical axis with respect to its movable support means (e.g., vehicle).