US PATENT SUBCLASS 215 / 308
.~.~ Communicating through a filter

Current as of: June, 1999
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215 /   HD   BOTTLES AND JARS

200  DF  CLOSURES {32}
307  DF  .~ Receptacle interior communicable with exterior with closure in applied position (e.g., vented) {4}
308.~.~ Communicating through a filter

DEFINITION

Classification: 215/308

(under subclass 307) Devices, wherein the passage includes a filtering means.