US PATENT SUBCLASS 62 / 48.2
.~.~ And subsequently restored to receptacle as liquid

Current as of: June, 1999
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62 /   HD   REFRIGERATION

45.1  DF  STORAGE OF SOLIDIFIED OR LIQUIFIED GAS (E.G., CRYOGEN) {12}
48.1  DF  .~ With vapor discharged from storage receptacle {3}
48.2.~.~ And subsequently restored to receptacle as liquid

DEFINITION

Classification: 62/48.2

And subsequently restored to receptacle as liquid:

(under subclass 48.1) Process or apparatus wherein the removed vapor is condensed and then returned to the receptacle as a liquid.