US PATENT SUBCLASS 144 / 24.18
.~ Ladder making
Current as of:
June, 1999
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144 /
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WOODWORKING
2.1
DF
SPECIAL-WORK MACHINE
{34}
24.18
.~ Ladder making
DEFINITION
Classification: 144/24.18
Ladder making:
(under subclass 2.1) Machine intended to construct a portable member intended to be climbed.