US PATENT SUBCLASS 182 / 98
.~.~.~ Normally counterbalanced to inoperative position
Current as of:
June, 1999
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182 /
HD
FIRE ESCAPE, LADDER, OR SCAFFOLD
82
DF
WALL- OR FLOOR-ATTACHED
{7}
93
DF
.~ Ladder {4}
97
DF
.~.~ Pivoted {1}
98
.~.~.~ Normally counterbalanced to inoperative position
DEFINITION
Classification: 182/98
(under subclass 97) Device in which the ladder is normally counter balanced to inoperative position.
SEE OR SEARCH THIS CLASS, SUBCLASS:
85+, for a nonpivoted ladder which is counter balanced.