US PATENT SUBCLASS 33 / 817
.~.~.~ With lock

Current as of: June, 1999
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33 /   HD   GEOMETRICAL INSTRUMENTS

700  DF  DISTANCE MEASURING {13}
783  DF  .~ Opposed contacts {10}
813  DF  .~.~ Micrometer {10}
817.~.~.~ With lock

DEFINITION

Classification: 33/817

With lock:

(under subclass 813) Subject matter having means for preventing movement of one of the contacts by securing either the contact or barrel against actuating movement.