CA411945A - Telephone switching apparatus - Google Patents

Telephone switching apparatus

Info

Publication number
CA411945A
CA411945A CA411945A CA411945DA CA411945A CA 411945 A CA411945 A CA 411945A CA 411945 A CA411945 A CA 411945A CA 411945D A CA411945D A CA 411945DA CA 411945 A CA411945 A CA 411945A
Authority
CA
Canada
Prior art keywords
switching apparatus
telephone switching
telephone
switching
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
CA411945A
Other languages
French (fr)
Inventor
Frederick Obergfell Herbert
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 CA411945A publication Critical patent/CA411945A/en
Expired legal-status Critical Current

Links

CA411945A Telephone switching apparatus Expired CA411945A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA411945T

Publications (1)

Publication Number Publication Date
CA411945A true CA411945A (en) 1943-04-20

Family

ID=35423247

Family Applications (1)

Application Number Title Priority Date Filing Date
CA411945A Expired CA411945A (en) Telephone switching apparatus

Country Status (1)

Country Link
CA (1) CA411945A (en)

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