US PATENT SUBCLASS 211 / 9
.~.~ Unlocked retained key

Current as of: June, 1999
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211 /   HD   SUPPORTS: RACKS

4  DF  ARTICLE LOCKING {4}
8  DF  .~ Combined lock and clamp {1}
9.~.~ Unlocked retained key

DEFINITION

Classification: 211/9

(under subclass 8) Devices with means to retain the key and check in the lock when the clamp is open or unlocked.