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CA580616A - Systemes de signalisation electrique - Google Patents

Systemes de signalisation electrique

Info

Publication number
CA580616A
CA580616A CA580616A CA580616DA CA580616A CA 580616 A CA580616 A CA 580616A CA 580616 A CA580616 A CA 580616A CA 580616D A CA580616D A CA 580616DA CA 580616 A CA580616 A CA 580616A
Authority
CA
Canada
Prior art keywords
signalling systems
electrical signalling
electrical
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
CA580616A
Other languages
English (en)
Inventor
T. Baker George
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.)
British Telecommunications PLC
Original Assignee
British Telecommunications PLC
Publication date
Application granted granted Critical
Publication of CA580616A publication Critical patent/CA580616A/fr
Expired legal-status Critical Current

Links

CA580616A Systemes de signalisation electrique Expired CA580616A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA580616T

Publications (1)

Publication Number Publication Date
CA580616A true CA580616A (fr) 1959-08-04

Family

ID=35760038

Family Applications (1)

Application Number Title Priority Date Filing Date
CA580616A Expired CA580616A (fr) Systemes de signalisation electrique

Country Status (1)

Country Link
CA (1) CA580616A (fr)

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