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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FERDINAND LENAY
RENE LENAY
Original Assignee
FERDINAND LENAY
RENE LENAY
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Filing date
Publication date
Application filed by FERDINAND LENAY, RENE LENAYfiledCriticalFERDINAND LENAY
Application grantedgrantedCritical
Publication of FR399692ApublicationCriticalpatent/FR399692A/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
B61L5/206—Signalling means for special purposes
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Engineering & Computer Science
(AREA)
Mechanical Engineering
(AREA)
FR399692D1909-01-131909-01-13Signal de sureté pour chemin de fer
ExpiredFR399692A
(fr)