US PATENT SUBCLASS 182 / 210
.~.~.~ Section movement actuated

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

194  DF  LADDER {10}
207  DF  .~ Extension {2}
209  DF  .~.~ With latch {2}
210.~.~.~ Section movement actuated {1}
211  DF  .~.~.~.~> Spring-biased latch

DEFINITION

Classification: 182/210

(under subclass 209) Device wherein the latch is actuated by movement of a ladder section.