US PATENT SUBCLASS 5 / 21
.~.~.~ Change of level

Current as of: June, 1999
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5 /   HD   BEDS

12.1  DF  SOFA BED {15}
17  DF  .~ Extension {3}
18.1  DF  .~.~ Slidable section {3}
21.~.~.~ Change of level

DEFINITION

Classification: 5/21

(under subclass 18.1) Devices in which a section parallel to the seat slides out, and then the level of one or the other is substantially changed without overturn to make the two sections practically coplanar.

SEE OR SEARCH THIS CLASS, SUBCLASS:

18.1+, for devices in which there may be a slight elevating of one side of the movable section toward the end of its motion to bring the adjacent edges of the sections on the same level.