US PATENT SUBCLASS 182 / 88
.~ Retractable or collapsible beneath floor, track-mounted

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

82  DF  WALL- OR FLOOR-ATTACHED {7}
88.~ Retractable or collapsible beneath floor, track-mounted

DEFINITION

Classification: 182/88

(under subclass 82) Device which are retractable or collapsible beneath the floor support on track means.

SEE OR SEARCH THIS CLASS, SUBCLASS:

79+, for a guided rigid ladder operated by associated door means.