US PATENT SUBCLASS 454 / 149
.~.~.~ Having exterior door

Current as of: June, 1999
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454 /   HD   VENTILATION

69  DF  VEHICLE (E.G., AUTOMOBILE, ETC.) {15}
143  DF  .~ Having inlet airway {7}
146  DF  .~.~ Including exterior cowl inlet {3}
149.~.~.~ Having exterior door

DEFINITION

Classification: 454/149

Having exterior door:

(under subclass 146) Subject matter comprising a structure exposed to atmosphere which swings, slides, rotates, or otherwise moves between two positions, one exposing the (cowl) aperture to atmosphere to admit air therethrough and a second covering the aperture to prevent admittance of air therethrough.