Title:
Traffic signal systems
United States Patent 3254324


Inventors:
Leonard, Casciato
Josef, Kates
Application Number:
US8258061A
Publication Date:
05/31/1966
Filing Date:
01/13/1961
Assignee:
Leonard, Casciato
Josef, Kates
Primary Class:
Other Classes:
701/117
International Classes:
G08G1/081
View Patent Images:
Foreign References:
GB442555A1936-02-11
GB488796A1938-07-13
GB521588A1940-05-27
GB535709A1941-04-18
GB719121A1954-11-24