Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filedfiledCritical
Application grantedgrantedCritical
Publication of FR858450ApublicationCriticalpatent/FR858450A/fr
G08G1/00—Traffic control systems for road vehicles
G08G1/09—Arrangements for giving variable traffic instructions
G08G1/096—Arrangements for giving variable traffic instructions provided with indicators in which a mark progresses showing the time elapsed, e.g. of green phase
Landscapes
Physics & Mathematics
(AREA)
General Physics & Mathematics
(AREA)
FR858450D1939-07-281939-07-28Perfectionnements apportés aux appareils automatiques pour régler la circulation des rues
ExpiredFR858450A
(fr)