CA455024A - Telephone exchange system - Google Patents

Telephone exchange system

Info

Publication number
CA455024A
CA455024A CA455024A CA455024DA CA455024A CA 455024 A CA455024 A CA 455024A CA 455024 A CA455024 A CA 455024A CA 455024D A CA455024D A CA 455024DA CA 455024 A CA455024 A CA 455024A
Authority
CA
Canada
Prior art keywords
exchange system
telephone exchange
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
CA455024A
Other languages
French (fr)
Inventor
Deakin Gerald
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.)
International Standard Electric Corp
Original Assignee
International Standard Electric Corp
Publication date
Application granted granted Critical
Publication of CA455024A publication Critical patent/CA455024A/en
Expired legal-status Critical Current

Links

CA455024A Telephone exchange system Expired CA455024A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA455024T

Publications (1)

Publication Number Publication Date
CA455024A true CA455024A (en) 1949-03-08

Family

ID=35572763

Family Applications (1)

Application Number Title Priority Date Filing Date
CA455024A Expired CA455024A (en) Telephone exchange system

Country Status (1)

Country Link
CA (1) CA455024A (en)

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