CA779409A - Automatic telephone exchange systems - Google Patents

Automatic telephone exchange systems

Info

Publication number
CA779409A
CA779409A CA779409A CA779409DA CA779409A CA 779409 A CA779409 A CA 779409A CA 779409 A CA779409 A CA 779409A CA 779409D A CA779409D A CA 779409DA CA 779409 A CA779409 A CA 779409A
Authority
CA
Canada
Prior art keywords
telephone exchange
automatic telephone
exchange systems
systems
automatic
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
CA779409A
Inventor
J. Stirling Harold
G. Taylor James
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.)
Associated Electrical Industries Ltd
Original Assignee
Associated Electrical Industries Ltd
Publication date
Application granted granted Critical
Publication of CA779409A publication Critical patent/CA779409A/en
Expired legal-status Critical Current

Links

CA779409A Automatic telephone exchange systems Expired CA779409A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA779409T

Publications (1)

Publication Number Publication Date
CA779409A true CA779409A (en) 1968-02-27

Family

ID=36226746

Family Applications (1)

Application Number Title Priority Date Filing Date
CA779409A Expired CA779409A (en) Automatic telephone exchange systems

Country Status (1)

Country Link
CA (1) CA779409A (en)

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