US PATENT SUBCLASS 182 / 182.5
.~.~.~ By extensible leg
Current as of:
June, 1999
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182 /
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FIRE ESCAPE, LADDER, OR SCAFFOLD
179.1
DF
SELF-SUSTAINING
{5}
181.1
DF
.~ Scaffold horse (e.g., trestle) {7}
182.1
DF
.~.~ Having height adjustable beam {3}
182.5
.~.~.~ By extensible leg
DEFINITION
Classification: 182/182.5
By extensible leg:
(under subclass 182.1) Device wherein one of the trestle legs is longitudinally adjustable.
SEE OR SEARCH THIS CLASS, SUBCLASS:
201+, for a ladder stile extension.
SEE OR SEARCH CLASS
108, Horizontally Supported Planar Surfaces,
144.11+, for a horizon-tally supported planar surface which is vertically adjustable.
248, Supports, 157, for a vertically adjustable stand.