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Automatic traffic control
US 2,933,716 A
Filed
: 01/22/1957
Issued
: 04/19/1960
Est. Priority Date
: 01/22/1957
Status: Expired due to Term
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Current Assignee
John W. Soderberg
Original Assignee
John W. Soderberg
Inventors
Soderberg, John W.
Application Number
US03/635,318
Time in Patent Office
1,183 Days
Field of Search
US Class Current
340/934
CPC Class Codes
G08G 1/0104
Measuring and analyzing of ...
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