US PATENT SUBCLASS 248 / 336
.~.~.~.~ Clutch

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}
336.~.~.~.~ Clutch {1}
337  DF  .~.~.~.~.~> Friction

DEFINITION

Classification: 248/336

(under subclass 333) Devices in which a clutch is provided to hold the tubes in adjusted position.