CA690627A - Telephone system - Google Patents

Telephone system

Info

Publication number
CA690627A
CA690627A CA690627A CA690627DA CA690627A CA 690627 A CA690627 A CA 690627A CA 690627 A CA690627 A CA 690627A CA 690627D A CA690627D A CA 690627DA CA 690627 A CA690627 A CA 690627A
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
CA690627A
Inventor
E. Hersey 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
Publication date
Application granted granted Critical
Publication of CA690627A publication Critical patent/CA690627A/en
Expired legal-status Critical Current

Links

CA690627A Telephone system Expired CA690627A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA690627T

Publications (1)

Publication Number Publication Date
CA690627A true CA690627A (en) 1964-07-14

Family

ID=35993249

Family Applications (1)

Application Number Title Priority Date Filing Date
CA690627A Expired CA690627A (en) Telephone system

Country Status (1)

Country Link
CA (1) CA690627A (en)

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