US PATENT SUBCLASS 368 / 245
.~.~ With variable loudness or tone

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

243  DF  SIGNALLING MEANS {6}
244  DF  .~ Time condition responsive (i.e., alarm) {10}
245.~.~ With variable loudness or tone

DEFINITION

Classification: 368/245

With variable loudness or tone:

(under subclass 244) Subject matter having variations in the sounds produced by an acoustic- signalling means.