US PATENT SUBCLASS 297 / 377
.~.~.~ Held by prop behind back
Current as of:
June, 1999
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297 /
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CHAIRS AND SEATS
353
DF
MOVABLE BACK
{2}
354.1
DF
.~ Tiltable {3}
354.12
DF
.~.~ Plural distinct occupant-supporting positions {11}
377
.~.~.~ Held by prop behind back
DEFINITION
Classification: 297/377
(under subclass 354.12) Device in which a rigid, elongated element supports the rear side of the back in use position.
SEE OR SEARCH CLASS
248, Supports,
351+, for a supporting prop or brace of general utility.