US PATENT SUBCLASS 70 / 389
.~.~ Key-removal preventing

Current as of: June, 1999
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70 /   HD   LOCKS

266  DF  OPERATING MECHANISM {6}
336  DF  .~ Key {10}
389.~.~ Key-removal preventing

DEFINITION

Classification: 70/389

(under subclass 336) Devices including a mechanism designed to restrain removal of the key until a predetermined primary manipulation is effected.

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441, for key removal prevention designed to direct the attention of the user to a condition which is not desired.

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194, Check-Actuated Control Mechanisms,

51, 59 and 65, for coin or check controlled devices of this character.