US PATENT SUBCLASS 182 / 67.4
.~.~.~ Folding ladder
Current as of:
June, 1999
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182 /
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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
DF
.~.~ About vertical axis {3}
67.4
.~.~.~ Folding ladder
DEFINITION
Classification: 182/67.4
Folding ladder:
(under subclass 65.1) Device comprising a ladder of multiple coextensive sections pivotally connected together so that they can be brought from an extended to a folded position.