CA523474A - Systemes de signalisation electrique - Google Patents

Systemes de signalisation electrique

Info

Publication number
CA523474A
CA523474A CA523474A CA523474DA CA523474A CA 523474 A CA523474 A CA 523474A CA 523474 A CA523474 A CA 523474A CA 523474D A CA523474D A CA 523474DA CA 523474 A CA523474 A CA 523474A
Authority
CA
Canada
Prior art keywords
signalling systems
electric signalling
electric
systems
signalling
Prior art date
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.)
Expired
Application number
CA523474A
Other languages
English (en)
Inventor
M. S. Mcwhirter Eric
H. Dunn Roland
W. Lennox Peter
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.)
International Standard Electric Corp
Original Assignee
International Standard Electric Corp
Publication date
Application granted granted Critical
Publication of CA523474A publication Critical patent/CA523474A/fr
Expired legal-status Critical Current

Links

CA523474A Systemes de signalisation electrique Expired CA523474A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA523474T

Publications (1)

Publication Number Publication Date
CA523474A true CA523474A (fr) 1956-04-03

Family

ID=35676708

Family Applications (1)

Application Number Title Priority Date Filing Date
CA523474A Expired CA523474A (fr) Systemes de signalisation electrique

Country Status (1)

Country Link
CA (1) CA523474A (fr)

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