US PATENT SUBCLASS 5 / 17
.~ Extension

Current as of: June, 1999
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5 /   HD   BEDS

12.1  DF  SOFA BED {15}
17.~ Extension {3}
18.1  DF  .~.~> Slidable section {3}
22  DF  .~.~> Link walk-over
23  DF  .~.~> Traversing seat with rotary follower section

DEFINITION

Classification: 5/17

(under subclass 12.1) Devices characterized by one or more bed sections which move out forwardly or backwardly without overturning. Extension sofa beds are mainly of a couch type without back or stuffed ends and resemble a bedstead with very low head and foot boards.

SEE OR SEARCH THIS CLASS, SUBCLASS:

41, for extension seats on reverting backs.

181+, especially 185 for similar structure on bedsteads.