US PATENT SUBCLASS 220 / 363
.~.~ Nonmetallic

Current as of: June, 1999
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220 /   HD   RECEPTACLES

200  DF  CLOSURES {45}
361  DF  .~ Sealing or closing means for vent or filling opening {3}
363.~.~ Nonmetallic

DEFINITION

Classification: 220/363

(under subclass 361) Device in which the sealing or closing means is nonmetallic.