US PATENT SUBCLASS 362 / 379
SMOKE BELLS


Current as of: June, 1999
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362 /   HD   ILLUMINATION

379SMOKE BELLS


DEFINITION

Classification: 362/379

(under the class definition) Subject matter comprising means

placed over flame-type light sources to prevent the heat or smoke therefrom from blackening or otherwise injuring superimposed structures (e.g., ceilings).

SEE OR SEARCH CLASS

104, Railways,

52,.

454, Ventilation, appropriate subclasses for smoke bells which may also ventilate a room or other structure.