US PATENT SUBCLASS 340 / 392.5
.~.~ Resonator (e.g., signal chimes)

Current as of: June, 1999
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340 /   HD   COMMUNICATIONS: ELECTRICAL

384.1  DF  AUDIBLE INDICATION {11}
392.1  DF  .~ Percussion-type sound producer (e.g., signal chimes or bells) {15}
392.5.~.~ Resonator (e.g., signal chimes)

DEFINITION

Classification: 340/392.5

Resonator (e.g., signal chimes):

(under subclass 392.1) Subject matter wherein the striking means hits a vibrating member associated with a tuned air chamber to emit a desired tone.