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.)
SYLVAIN LIVONNET
Original Assignee
SYLVAIN LIVONNET
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 SYLVAIN LIVONNETfiledCriticalSYLVAIN LIVONNET
Application grantedgrantedCritical
Publication of FR424996ApublicationCriticalpatent/FR424996A/fr
B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
B61L5/00—Local operating mechanisms for points or track-mounted scotch-blocks; Visible or audible signals; Local operating mechanisms for visible or audible signals
B61L5/20—Audible signals, e.g. detonator audible signalling
B61L5/203—Detonators; Track mounting means; Composition of the detonative product
Landscapes
Engineering & Computer Science
(AREA)
Mechanical Engineering
(AREA)
FR424996D1911-01-181911-01-18Signal avertisseur automatique transportable pour la protection des convois de chemins de fer
ExpiredFR424996A
(fr)