CA631410A - Telephone exchange systems and the like - Google Patents

Telephone exchange systems and the like

Info

Publication number
CA631410A
CA631410A CA631410A CA631410DA CA631410A CA 631410 A CA631410 A CA 631410A CA 631410 A CA631410 A CA 631410A CA 631410D A CA631410D A CA 631410DA CA 631410 A CA631410 A CA 631410A
Authority
CA
Canada
Prior art keywords
telephone exchange
exchange systems
systems
telephone
exchange
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
CA631410A
Inventor
E. Flood John
R. Ewington Ronald
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.)
Siemens Edison Swan Ltd
Original Assignee
Siemens Edison Swan Ltd
Publication date
Application granted granted Critical
Publication of CA631410A publication Critical patent/CA631410A/en
Expired legal-status Critical Current

Links

CA631410A Telephone exchange systems and the like Expired CA631410A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA631410T

Publications (1)

Publication Number Publication Date
CA631410A true CA631410A (en) 1961-11-21

Family

ID=35887551

Family Applications (1)

Application Number Title Priority Date Filing Date
CA631410A Expired CA631410A (en) Telephone exchange systems and the like

Country Status (1)

Country Link
CA (1) CA631410A (en)

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