US PATENT SUBCLASS 70 / 397
.~.~.~.~.~ With extensible shank or stem

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}
395  DF  .~.~.~.~ Multi-part structures {5}
397.~.~.~.~.~ With extensible shank or stem

DEFINITION

Classification: 70/397

(under subclass 395) Subject matter wherein the shank or stem has relatively movable parts to provide for extensibility for use and collapsiblility in nonuse.