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CA422283A - Telephone system - Google Patents

Telephone system

Info

Publication number
CA422283A
CA422283A CA422283A CA422283DA CA422283A CA 422283 A CA422283 A CA 422283A CA 422283 A CA422283 A CA 422283A CA 422283D A CA422283D A CA 422283DA CA 422283 A CA422283 A CA 422283A
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
CA422283A
Other languages
French (fr)
Inventor
Roger Miller Ohmer
Edward King Ralph
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.)
AT&T Corp
Original Assignee
Western Electric Co Inc
Bell Telephone Laboratories Inc
Publication date
Application granted granted Critical
Publication of CA422283A publication Critical patent/CA422283A/en
Expired legal-status Critical Current

Links

CA422283A Telephone system Expired CA422283A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA422283T

Publications (1)

Publication Number Publication Date
CA422283A true CA422283A (en) 1944-08-22

Family

ID=35533274

Family Applications (1)

Application Number Title Priority Date Filing Date
CA422283A Expired CA422283A (en) Telephone system

Country Status (1)

Country Link
CA (1) CA422283A (en)

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