US PATENT SUBCLASS 5 / 42.1
.~.~ Unfolding back section

Current as of: June, 1999
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5 /   HD   BEDS

12.1  DF  SOFA BED {15}
37.1  DF  .~ Reverting back {6}
42.1.~.~ Unfolding back section

DEFINITION

Classification: 5/42.1

Unfolding back section:

(under subclass 37.1) Device wherein the back is itself unfoldable or has further attached sections which are unfoldable.

SEE OR SEARCH CLASS

297, Chairs and Seats,

354.1+, for a seat having a back which may be tilted downward with respect to the bottom to form an extension of the bottom surface.