US PATENT SUBCLASS 454 / 115
.~.~ Having outlet airway

Current as of: June, 1999
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454 /   HD   VENTILATION

69  DF  VEHICLE (E.G., AUTOMOBILE, ETC.) {15}
83  DF  .~ Railcar, bus, or trailer {10}
115.~.~ Having outlet airway {2}
116  DF  .~.~.~> With current inducing jet
117  DF  .~.~.~> With air pump (e.g., wind or wheel-axle operated, etc.)

DEFINITION

Classification: 454/115

Having outlet airway:

(under subclass 83) Subject matter comprising means for exhausting air from the ventilated space.

SEE OR SEARCH THIS CLASS, SUBCLASS:

162+, for other types of vehicles having an outlet airway.

339+, for static structures (e.g., buildings) having an outlet airway.