US PATENT SUBCLASS 62 / 911
.~ Portable

Current as of: June, 1999
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62 /   HD   REFRIGERATION

902  DF  Apparatus {6}
911.~ Portable

DEFINITION

Classification: 62/911

Portable:

Subject matter under 902 with specific details of cryogenic separation or liquefaction devices which can be readily moved from place to place.