US PATENT SUBCLASS 248 / 335
.~.~.~.~.~ With clutch in tubes

Current as of: June, 1999
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248 /   HD   SUPPORTS

317  DF  SUSPENDED SUPPORTS {5}
323  DF  .~ Adjustable {2}
327  DF  .~.~ Vertically {2}
333  DF  .~.~.~ Telescoping tubes {3}
334.1  DF  .~.~.~.~ Spring reel counterbalanced {1}
335.~.~.~.~.~ With clutch in tubes

DEFINITION

Classification: 248/335

(under subclass 334.1) Devices in which the tubes are held in adjusted position by a releasable clutch within the tubes.