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Title:
Portable traffic signal having changing color illumination
United States Patent 3197757


Inventors:
Cesar, Porta
Application Number:
US27409063A
Publication Date:
07/27/1965
Filing Date:
04/19/1963
Export Citation:
Click for automatic bibliography generation
Assignee:
Cesar, Porta
Primary Class:
340/321
Other Classes:
340/331
International Classes:
G08G1/095; G08G1/0955; G09F21/02
View Patent Images:
Download PDF 3197757  
US Patent References:
2695403Flashing flashlight1954-11-23
2634407Intermittently actuated portable signal1953-04-07
2567046Two-color wand light attachment for flashlights1951-09-04
2283442Periodic switch1942-05-19
2066145Changeable color electric lamp1936-12-29
1800331Signaling device1931-04-14
1371860Advertising device1921-03-15




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