US PATENT SUBCLASS 62 / 908
.~ Filter or absorber

Current as of: June, 1999
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62 /   HD   REFRIGERATION

902  DF  Apparatus {6}
908.~ Filter or absorber

DEFINITION

Classification: 62/908

Filter or absorber:

Subject matter under 902 with specific details for means to remove or sorb impurities from the cryogenic treatment system

(e.g. specific materials, placement)which can be liquid or solid.