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TECH POUR L IND NOUVELLE SOC
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TECH POUR L IND NOUVELLE SOC
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Application filed by TECH POUR L IND NOUVELLE SOCfiledCriticalTECH POUR L IND NOUVELLE SOC
Application grantedgrantedCritical
Publication of FR1244143ApublicationCriticalpatent/FR1244143A/fr
B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
B61L23/00—Control, warning or like safety means along the route or between vehicles or trains
B61L23/08—Control, warning or like safety means along the route or between vehicles or trains for controlling traffic in one direction only
B61L23/10—Control, warning or like safety means along the route or between vehicles or trains for controlling traffic in one direction only manually operated, e.g. block arrangements
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Engineering & Computer Science
(AREA)
Mechanical Engineering
(AREA)
FR814553A1959-01-221959-12-30Appareil récepteur pour circuits électriques de voie à courant alternatif
ExpiredFR1244143A
(fr)