US PATENT SUBCLASS 62 / 907
.~.~ Insulation

Current as of: June, 1999
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62 /   HD   REFRIGERATION

902  DF  Apparatus {6}
905  DF  .~ Column {2}
907.~.~ Insulation

DEFINITION

Classification: 62/907

Insulation:

Subject matter under 905 with specific details for means to reduce heat transfer to or from the distillation column (e.g. specific materials, arrangement).