US PATENT SUBCLASS 182 / 60
.~.~.~.~ Wall-clamping 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  DF  .~ Interior wall-engaging means {2}
58  DF  .~.~ Depending {1}
59  DF  .~.~.~ Saddle {2}
60.~.~.~.~ Wall-clamping means

DEFINITION

Classification: 182/60

(under subclass 59) Device with means to clamp it to one the walls.