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Browse by Category: Main > Optical & Optics
Class Information
Number: 362/379
Name: Illumination > Smoke bells
Description: 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).










Patents under this class:

Patent Number Title Of Patent Date Issued
6191899 Emergency visual assistance device Feb. 20, 2001
6074080 Reversible taillight assembly Jun. 13, 2000
4161172 Life support chamber for infants, method and system Jul. 17, 1979
4121571 Transportable life support chamber, method and system Oct. 24, 1978











 
 
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