US PATENT SUBCLASS 70 / 407
.~.~.~.~.~ Irregular nonplanar or undulated

Current as of: June, 1999
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70 /   HD   LOCKS

266  DF  OPERATING MECHANISM {6}
336  DF  .~ Key {10}
391  DF  .~.~ Operating elements {2}
393  DF  .~.~.~ Keys {8}
402  DF  .~.~.~.~ Single shank or stem {3}
407.~.~.~.~.~ Irregular nonplanar or undulated

DEFINITION

Classification: 70/407

(under subclass 402) Devices of irregular nonplanar or undulated configuration, generally helical, bent or twisted.