US PATENT SUBCLASS 182 / 21
.~ Ladder

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

20  DF  CONVERTIBLE {2}
21.~ Ladder {5}
22  DF  .~.~> Ladder of different type {2}
27  DF  .~.~> Scaffold
28  DF  .~.~> Table {2}
33  DF  .~.~> Chair or stool {3}
34  DF  .~.~> Bed

DEFINITION

Classification: 182/21

(under subclass 20) Device comprising a ladder.

SEE OR SEARCH CLASS

52, Static Structures (e.g., Buildings).