US PATENT SUBCLASS 55 / 385.2
.~ In environmental air enclosure

Current as of: June, 1999
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55 /   HD   GAS SEPARATION

385.1  DF  COMBINED OR CONVERTIBLE {7}
385.2.~ In environmental air enclosure

DEFINITION

Classification: 55/385.2

In environmental air enclosure:

(under subclass 385.1) Apparatus wherein an enclosure, e.g., clean air room, bomb shelter, incubator, etc., has means to provide air for a desired purpose.