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.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MARCEL PITOIS
SIGNAUX ELECTRIQUES POUR CHEMINS DE F Cie
Original Assignee
MARCEL PITOIS
SIGNAUX ELECTRIQUES POUR CHEMINS DE F Cie
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 filed by MARCEL PITOIS, SIGNAUX ELECTRIQUES POUR CHEMINS DE F CiefiledCriticalMARCEL PITOIS
Application grantedgrantedCritical
Publication of FR452030ApublicationCriticalpatent/FR452030A/fr
B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
B61L13/00—Operation of signals from the vehicle or by the passage of the vehicle
B61L13/04—Operation of signals from the vehicle or by the passage of the vehicle using electrical or magnetic interaction between vehicle and track, e.g. by conductor circuits using special means or special conductors
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Engineering & Computer Science
(AREA)
Mechanical Engineering
(AREA)
FR452030D1912-12-181912-12-18Block automatique pour chemins de fer
ExpiredFR452030A
(fr)