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.)
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Siemens Schuckertwerke AG
Siemens AG
Original Assignee
Siemens Schuckertwerke AG
Siemens AG
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Filing date
Publication date
Application filed by Siemens Schuckertwerke AG, Siemens AGfiledCriticalSiemens Schuckertwerke AG
Application grantedgrantedCritical
Publication of FR723142ApublicationCriticalpatent/FR723142A/fr
B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
B61L3/00—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal
B61L3/02—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal at selected places along the route, e.g. intermittent control simultaneous mechanical and electrical control
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Engineering & Computer Science
(AREA)
Mechanical Engineering
(AREA)
FR723142D1930-09-091931-09-09Installation pour surveiller la vitesse de véhicules de chemins de fer
ExpiredFR723142A
(fr)