CA529042A - Electrical signalling systems - Google Patents

Electrical signalling systems

Info

Publication number
CA529042A
CA529042A CA529042A CA529042DA CA529042A CA 529042 A CA529042 A CA 529042A CA 529042 A CA529042 A CA 529042A CA 529042D A CA529042D A CA 529042DA CA 529042 A CA529042 A CA 529042A
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
CA529042A
Other languages
French (fr)
Inventor
A. Burns 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.)
Automatic Telephone and Electric Co Ltd
Original Assignee
Automatic Telephone and Electric Co Ltd
Publication date
Application granted granted Critical
Publication of CA529042A publication Critical patent/CA529042A/en
Expired legal-status Critical Current

Links

CA529042A Electrical signalling systems Expired CA529042A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA529042T

Publications (1)

Publication Number Publication Date
CA529042A true CA529042A (en) 1956-08-14

Family

ID=35682787

Family Applications (1)

Application Number Title Priority Date Filing Date
CA529042A Expired CA529042A (en) Electrical signalling systems

Country Status (1)

Country Link
CA (1) CA529042A (en)

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