US PATENT SUBCLASS 5 / 252
.~.~.~.~ Intermediate frames and connections

Current as of: June, 1999
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5 /   HD   BEDS

131  DF  BEDSTEADS {6}
400  DF  .~ Having bottom {9}
246  DF  .~.~ Of springs {3}
248  DF  .~.~.~ Spiral springs only {3}
252.~.~.~.~ Intermediate frames and connections

DEFINITION

Classification: 5/252

(under subclass 248) Devices comprising horizontal frames or connections interposed between the upper and lower surfaces of spring assemblages forming "double-deck" springs or connecting together the waists or central parts of the spring units.