US PATENT SUBCLASS 5 / 138
.~.~.~ Successive pivoting

Current as of: June, 1999
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5 /   HD   BEDS

131  DF  BEDSTEADS {6}
133  DF  .~ Upending {18}
137  DF  .~.~ Shifting fulcrum {7}
138.~.~.~ Successive pivoting

DEFINITION

Classification: 5/138

(under subclass 137) Devices which move to vertical position by pivoting about several fixed points in succession. Includes rocker bases mounted on a frame or case and single struts having a rocking or cogged base.