US PATENT SUBCLASS 297 / 396
.~ Extension of upper back


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

391  DF  HEADREST {12}
396.~ Extension of upper back


DEFINITION

Classification: 297/396

(under subclass 391) Device wherein the top of the back of the seat is enlarged to provide a distinct headrest area, distinguished (as by different contour or by means which permit it to move relative to the back) from the back proper.