US PATENT SUBCLASS 248 / 321
.~.~ Clutch type

Current as of: June, 1999
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248 /   HD   SUPPORTS

317  DF  SUSPENDED SUPPORTS {5}
320  DF  .~ Releasable for lowering {2}
321.~.~ Clutch type

DEFINITION

Classification: 248/321

(under subclass 320) Devices in which the suspension element is grasped by a releasable clutch.