US PATENT SUBCLASS 297 / 337
.~ Movable independently of back

Current as of: June, 1999
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297 /   HD   CHAIRS AND SEATS

311  DF  MOVABLE BOTTOM {5}
337.~ Movable independently of back {1}
338  DF  .~.~> Vertically {1}

DEFINITION

Classification: 297/337

(under subclass 311) Devices wherein the bottom is movable separately from the back.

SEE OR SEARCH THIS CLASS, SUBCLASS:

313+, for a bottom which tilts independently of the back.