US PATENT SUBCLASS 62 / 309
.~ Gas recirculated relative to enclosure

Current as of: June, 1999
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62 /   HD   REFRIGERATION

304  DF  MATERIAL COOLING MEANS INCLUDING GAS-LIQUID CONTACTOR {9}
309.~ Gas recirculated relative to enclosure

DEFINITION

Classification: 62/309

(under subclass 304) Apparatus comprising means forcing or directing gas relative to the contactor and a related enclosure in such a manner that at least a portion of the gas is recirculated.