US PATENT SUBCLASS 116 / 145
.~.~.~.~ Parallel diaphragm

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

137 R  DF  HORNS, WHISTLES AND COMPRESSIONAL WAVE GENERATORS {6}
142 R  DF  .~ Diaphragm horns {2}
143  DF  .~.~ Rotary striker {2}
144  DF  .~.~.~ Toothed wheel {1}
145.~.~.~.~ Parallel diaphragm

DEFINITION

Classification: 116/145

(under subclass 144) Devices in which the plane of the toothed wheel is parallel to the plane of the diaphragm.