CA756204A - Electrical signalling systems - Google Patents

Electrical signalling systems

Info

Publication number
CA756204A
CA756204A CA756204A CA756204DA CA756204A CA 756204 A CA756204 A CA 756204A CA 756204 A CA756204 A CA 756204A CA 756204D A CA756204D A CA 756204DA CA 756204 A CA756204 A CA 756204A
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
CA756204A
Inventor
C. H. Davis John
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 CA756204A publication Critical patent/CA756204A/en
Expired legal-status Critical Current

Links

CA756204A Electrical signalling systems Expired CA756204A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA756204T

Publications (1)

Publication Number Publication Date
CA756204A true CA756204A (en) 1967-04-04

Family

ID=36193301

Family Applications (1)

Application Number Title Priority Date Filing Date
CA756204A Expired CA756204A (en) Electrical signalling systems

Country Status (1)

Country Link
CA (1) CA756204A (en)

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