US PATENT SUBCLASS 182 / 217
.~ With reinforcing means

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

194  DF  LADDER {10}
217.~ With reinforcing means {2}
218  DF  .~.~> Bow string type
219  DF  .~.~> For side rail

DEFINITION

Classification: 182/217

(under subclass 194) Device with means to reinforce a member of the ladder.