US PATENT SUBCLASS 215 / 259
.~ Gas passes through a liquid

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

200  DF  CLOSURES {32}
259.~ Gas passes through a liquid

DEFINITION

Classification: 215/259

(under subclass 200) Devices, provided with a liquid barrier through which gas must pass as it enters or escapes from the closed receptacle.