US PATENT SUBCLASS 181 / 276
.~.~.~ Side branch

Current as of: June, 1999
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181 /   HD   ACOUSTICS

175  DF  SOUND-MODIFYING MEANS {12}
212  DF  .~ Muffler, fluid conducting type {25}
264  DF  .~.~ With baffle or baffle structure {9}
276.~.~.~ Side branch

DEFINITION

Classification: 181/276

Side branch:

(under subclass 264) Subject matter having cushion, acoustic filter, or resonator chambers in communication with the fluid passages.