CA423901A - Systeme electrique de signalisation et de controle - Google Patents

Systeme electrique de signalisation et de controle

Info

Publication number
CA423901A
CA423901A CA423901A CA423901DA CA423901A CA 423901 A CA423901 A CA 423901A CA 423901 A CA423901 A CA 423901A CA 423901D A CA423901D A CA 423901DA CA 423901 A CA423901 A CA 423901A
Authority
CA
Canada
Prior art keywords
control system
electrical signalling
signalling
electrical
control
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
CA423901A
Other languages
English (en)
Inventor
Arthur Harrison William
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 CA423901A publication Critical patent/CA423901A/fr
Expired legal-status Critical Current

Links

CA423901A Systeme electrique de signalisation et de controle Expired CA423901A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA423901T

Publications (1)

Publication Number Publication Date
CA423901A true CA423901A (fr) 1944-11-21

Family

ID=35534912

Family Applications (1)

Application Number Title Priority Date Filing Date
CA423901A Expired CA423901A (fr) Systeme electrique de signalisation et de controle

Country Status (1)

Country Link
CA (1) CA423901A (fr)

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