Traffic controllers
United States Patent 3105954
US Patent References:
Traffic signal
- - 1632211

Display means and method
- - 1968037

Luminous advertising sign
- - 2486859

Luminous sign
- - 2654971


Inventors:
Gill Jr., Edwin R.
Publication Date:
10/01/1963
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Assignee:
Karl, Flocks W.
Primary Class:
340/928
Other Classes:
40/543, 340/907, 340/815.650, 252/301.360, 250/462.100
International Classes:
G08G1/09; G08G1/095