US PATENT SUBCLASS 181 / 172
.~.~ Elastic suspension means

Current as of: June, 1999
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181 /   HD   ACOUSTICS

157  DF  DIAPHRAGM {10}
171  DF  .~ Mounting or suspension means {1}
172.~.~ Elastic suspension means

DEFINITION

Classification: 181/172

(under subclass 171) Subject matter wherein the means to hold the diaphragm is sufficiently flexible to permit the diaphragm to vibrate freely.