US PATENT SUBCLASS 62 / 925
.~ Xenon or krypton

Current as of: June, 1999
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62 /   HD   REFRIGERATION

923  DF  Inert gas {2}
925.~ Xenon or krypton

DEFINITION

Classification: 62/925

Xenon or krypton:

Subject matter under 923 specific to the recovery of xenon or krypton.