US PATENT SUBCLASS 182 / 57
.~ Interior wall-engaging means

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

53  DF  DETACHABLE WINDOW SEAT TYPE {4}
57.~ Interior wall-engaging means {2}
58  DF  .~.~> Depending {1}
62  DF  .~.~> With outside strut or brace

DEFINITION

Classification: 182/57

(under subclass 53) Device with support means engaging the wall surface of the common wall opposite that on which the platform is mounted.