US PATENT SUBCLASS 33 / 822
.~.~.~.~ By disengaging threaded element

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}
821  DF  .~.~.~ With preliminary setting arrangement {4}
822.~.~.~.~ By disengaging threaded element

DEFINITION

Classification: 33/822

By disengaging threaded element:

(under subclass 821) Subject matter wherein the threaded element is disconnected so that one of the contacts may be moved without rotating the threaded element.