US PATENT SUBCLASS 454 / 122
.~.~ Air directed between double paned window

Current as of: June, 1999
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454 /   HD   VENTILATION

69  DF  VEHICLE (E.G., AUTOMOBILE, ETC.) {15}
121  DF  .~ Condensation preventer (e.g., defroster, etc.) {6}
122.~.~ Air directed between double paned window

DEFINITION

Classification: 454/122

Air directed between double paned window:

(under subclass 121) Subject matter comprising two adjacent and parallel light admitting panels which together form a light admitting structure and wherein air is guided intermediate the two panels to prevent congealed material from accumulating on the panels.