CA426776A - Telephone system - Google Patents

Telephone system

Info

Publication number
CA426776A
CA426776A CA426776A CA426776DA CA426776A CA 426776 A CA426776 A CA 426776A CA 426776 A CA426776 A CA 426776A CA 426776D A CA426776D A CA 426776DA CA 426776 A CA426776 A CA 426776A
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
CA426776A
Other languages
French (fr)
Inventor
Allen Hubbard Francis
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 CA426776A publication Critical patent/CA426776A/en
Expired legal-status Critical Current

Links

CA426776A Telephone system Expired CA426776A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA426776T

Publications (1)

Publication Number Publication Date
CA426776A true CA426776A (en) 1945-04-10

Family

ID=35537804

Family Applications (1)

Application Number Title Priority Date Filing Date
CA426776A Expired CA426776A (en) Telephone system

Country Status (1)

Country Link
CA (1) CA426776A (en)

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