US PATENT SUBCLASS 182 / 49
.~ With ladder
Current as of:
June, 1999
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182 /
HD
FIRE ESCAPE, LADDER, OR SCAFFOLD
48
DF
CHUTE OR ESCAPE TOWER FOR PERSONNEL
{1}
49
.~ With ladder
DEFINITION
Classification: 182/49
(under subclass 48) Device wherein the means utilized by a person is a ladder.