CA468527A - Automatic telephone exchange systems - Google Patents

Automatic telephone exchange systems

Info

Publication number
CA468527A
CA468527A CA468527A CA468527DA CA468527A CA 468527 A CA468527 A CA 468527A CA 468527 A CA468527 A CA 468527A CA 468527D A CA468527D A CA 468527DA CA 468527 A CA468527 A CA 468527A
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
CA468527A
Other languages
French (fr)
Inventor
H. Voss 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.)
Nortel Networks Ltd
Original Assignee
Northern Electric Co Ltd
Publication date
Application granted granted Critical
Publication of CA468527A publication Critical patent/CA468527A/en
Expired legal-status Critical Current

Links

CA468527A Automatic telephone exchange systems Expired CA468527A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA468527T

Publications (1)

Publication Number Publication Date
CA468527A true CA468527A (en) 1950-10-03

Family

ID=35602458

Family Applications (1)

Application Number Title Priority Date Filing Date
CA468527A Expired CA468527A (en) Automatic telephone exchange systems

Country Status (1)

Country Link
CA (1) CA468527A (en)

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