US PATENT SUBCLASS 220 / 88.3
.~.~ By inert gas

Current as of: June, 1999
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220 /   HD   RECEPTACLES

694  DF  CONTAINER ATTACHMENT OR ADJUNCT {21}
88.1  DF  .~ Fire prevention {2}
88.3.~.~ By inert gas

DEFINITION

Classification: 220/88.3

By inert gas:

(under subclass 88.1) Receptacle wherein a fire is prevented from being sustained by the presence of a noncombustible atmosphere.