US PATENT SUBCLASS 368 / 171
.~.~.~ By compensation

Current as of: June, 1999
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368 /   HD   HOROLOGY: TIME MEASURING SYSTEMS OR DEVICES

168  DF  OSCILLATING OR RECIPROCATING MEANS {2}
169  DF  .~ Balance wheel type {1}
170  DF  .~.~ With regulation {4}
171.~.~.~ By compensation

DEFINITION

Classification: 368/171

By compensation:

(under subclass 170) Subject matter including means to make up for or offset unwanted variations in the oscillation or reciprocation of the balance wheel.

SEE OR SEARCH THIS CLASS, SUBCLASS:

202, for regulation of timepieces by compensation, per se.