US PATENT SUBCLASS 182 / 120
.~.~ Detachable step, single ladder

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

115  DF  LADDER AND PLATFORM {1}
116  DF  .~ Platform with ladder as support {6}
120.~.~ Detachable step, single ladder {1}
121  DF  .~.~.~> Plural rung-engaging {1}

DEFINITION

Classification: 182/120

(under subclass 116) Device in which a detachable step or

platform is adapted to be supported by a single ladder.