CA457980A - Telephone system - Google Patents

Telephone system

Info

Publication number
CA457980A
CA457980A CA457980A CA457980DA CA457980A CA 457980 A CA457980 A CA 457980A CA 457980 A CA457980 A CA 457980A CA 457980D A CA457980D A CA 457980DA CA 457980 A CA457980 A CA 457980A
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
CA457980A
Other languages
French (fr)
Inventor
A. Rhodes William
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 CA457980A publication Critical patent/CA457980A/en
Expired legal-status Critical Current

Links

CA457980A Telephone system Expired CA457980A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA457980T

Publications (1)

Publication Number Publication Date
CA457980A true CA457980A (en) 1949-07-05

Family

ID=35575898

Family Applications (1)

Application Number Title Priority Date Filing Date
CA457980A Expired CA457980A (en) Telephone system

Country Status (1)

Country Link
CA (1) CA457980A (en)

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