CA346635A - Systeme de signalisation electrique - Google Patents

Systeme de signalisation electrique

Info

Publication number
CA346635A
CA346635A CA346635A CA346635DA CA346635A CA 346635 A CA346635 A CA 346635A CA 346635 A CA346635 A CA 346635A CA 346635D A CA346635D A CA 346635DA CA 346635 A CA346635 A CA 346635A
Authority
CA
Canada
Prior art keywords
signalling system
electrical signalling
electrical
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
CA346635A
Other languages
English (en)
Inventor
Ernest Ryall Leonard
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.)
Automatic Telephone and Electric Co Ltd
Original Assignee
Automatic Telephone and Electric Co Ltd
Publication date
Application granted granted Critical
Publication of CA346635A publication Critical patent/CA346635A/fr
Expired legal-status Critical Current

Links

CA346635A Systeme de signalisation electrique Expired CA346635A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA346635T

Publications (1)

Publication Number Publication Date
CA346635A true CA346635A (fr) 1934-12-11

Family

ID=35317909

Family Applications (1)

Application Number Title Priority Date Filing Date
CA346635A Expired CA346635A (fr) Systeme de signalisation electrique

Country Status (1)

Country Link
CA (1) CA346635A (fr)

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