US PATENT SUBCLASS 5 / 48
.~.~ Increasing seat

Current as of: June, 1999
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5 /   HD   BEDS

12.1  DF  SOFA BED {15}
47  DF  .~ Sliding and pivoting back {1}
48.~.~ Increasing seat

DEFINITION

Classification: 5/48

(under subclass 47) Devices with a seat that increases by unfolding or extending to form a bed bottom in continuation of the back.