US PATENT SUBCLASS 62 / 411
.~.~.~ With additional means causing flow, e.g., blower

Current as of: June, 1999
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62 /   HD   REFRIGERATION

404  DF  GAS CONTROLLER OR DIRECTOR {5}
407  DF  .~ Cooled gas directed relative to cooled enclosure {7}
410  DF  .~.~ Exterior port, i.e., ventilating {2}
411.~.~.~ With additional means causing flow, e.g., blower

DEFINITION

Classification: 62/411

(under subclass 410) Apparatus including additional means for causing gas flow, e.g., blower, air scoop or heating means.

SEE OR SEARCH THIS CLASS, SUBCLASS:

414, 419 and 426+, for other combinations including gas forcing means.

SEE OR SEARCH CLASS

454, Ventilation, appropriate subclasses for a building having a ventilation air pump of general application.