CA491719A - Telephone system - Google Patents

Telephone system

Info

Publication number
CA491719A
CA491719A CA491719A CA491719DA CA491719A CA 491719 A CA491719 A CA 491719A CA 491719 A CA491719 A CA 491719A CA 491719D A CA491719D A CA 491719DA CA 491719 A CA491719 A CA 491719A
Authority
CA
Canada
Prior art keywords
telephone system
telephone
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
CA491719A
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 CA491719A publication Critical patent/CA491719A/en
Expired legal-status Critical Current

Links

CA491719A Telephone system Expired CA491719A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA491719T

Publications (1)

Publication Number Publication Date
CA491719A true CA491719A (en) 1953-03-31

Family

ID=35631464

Family Applications (1)

Application Number Title Priority Date Filing Date
CA491719A Expired CA491719A (en) Telephone system

Country Status (1)

Country Link
CA (1) CA491719A (en)

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