US PATENT SUBCLASS 116 / 59
.~.~ Diaphragm horns

Current as of: June, 1999
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116 /   HD   SIGNALS AND INDICATORS

28 R  DF  VEHICLE {12}
56  DF  .~ Vehicle-energy actuated {4}
59.~.~ Diaphragm horns

DEFINITION

Classification: 116/59

(under subclass 56) Audible signal devices in which a vibrating diaphragm is the source of sound.

SEE OR SEARCH THIS CLASS, SUBCLASS:

61, for friction-wheel signal-actuating features.

141+, for horns, per se.