US PATENT SUBCLASS 182 / 166
.~ Section extensible below prop pivot


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

165  DF  LADDER WITH PIVOTED PROP {9}
166.~ Section extensible below prop pivot {1}
167  DF  .~.~> With step registration


DEFINITION

Classification: 182/166

(under subclass 165) Device including at least one section extensible below the prop pivot.