US PATENT SUBCLASS 368 / 153
.~.~.~ Case controlled

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

139  DF  MECHANICAL TIME BASE {1}
140  DF  .~ Mainspring {7}
147  DF  .~.~ With winding {3}
153.~.~.~ Case controlled

DEFINITION

Classification: 368/153

Case controlled:

(under subclass 147) Subject matter including means on a housing to provide or regulate the energy, e.g., a rotatable rim or ringlike member.