Combined pedestrian traffic signal and advertising device
United States Patent 2503574
US Patent References:
/0682117.html
- - 0682117
/1051354.html
- - 1051354
Traffic signal device
- - 1963293
Illuminating device
- - 1965874
Sign
- - 2280010
/0682117.html
- - 0682117
/1051354.html
- - 1051354
Traffic signal device
- - 1963293
Illuminating device
- - 1965874
Sign
- - 2280010
Inventors:
Allen, John S.
Publication Date:
04/11/1950
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Export Citation:
Assignee:
WALKOLITE COMPANY INC
Primary Class:
Other Classes:
362/152, D10/114, 340/925, 40/446, 40/545
International Classes:
E01F9/053; G09F13/26; E01F9/04; G09F13/00
Foreign References:
| GB191411906A |