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CA565668A - Intercommunication systems - Google Patents

Intercommunication systems

Info

Publication number
CA565668A
CA565668A CA565668A CA565668DA CA565668A CA 565668 A CA565668 A CA 565668A CA 565668 A CA565668 A CA 565668A CA 565668D A CA565668D A CA 565668DA CA 565668 A CA565668 A CA 565668A
Authority
CA
Canada
Prior art keywords
intercommunication systems
intercommunication
systems
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
CA565668A
Other languages
French (fr)
Inventor
E. Lomax Clarence
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.)
Nortel Networks Ltd
Original Assignee
Northern Electric Co Ltd
Publication date
Application granted granted Critical
Publication of CA565668A publication Critical patent/CA565668A/en
Expired legal-status Critical Current

Links

CA565668A Intercommunication systems Expired CA565668A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA565668T

Publications (1)

Publication Number Publication Date
CA565668A true CA565668A (en) 1958-11-04

Family

ID=35738174

Family Applications (1)

Application Number Title Priority Date Filing Date
CA565668A Expired CA565668A (en) Intercommunication systems

Country Status (1)

Country Link
CA (1) CA565668A (en)

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