CA870835A - Telephone switching system - Google Patents

Telephone switching system

Info

Publication number
CA870835A
CA870835A CA870835A CA870835DA CA870835A CA 870835 A CA870835 A CA 870835A CA 870835 A CA870835 A CA 870835A CA 870835D A CA870835D A CA 870835DA CA 870835 A CA870835 A CA 870835A
Authority
CA
Canada
Prior art keywords
switching system
telephone switching
telephone
switching
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
CA870835A
Inventor
Amos E. Joel, Jr.
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 CA870835A publication Critical patent/CA870835A/en
Expired legal-status Critical Current

Links

CA870835A Telephone switching system Expired CA870835A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA870835T

Publications (1)

Publication Number Publication Date
CA870835A true CA870835A (en) 1971-05-11

Family

ID=36356869

Family Applications (1)

Application Number Title Priority Date Filing Date
CA870835A Expired CA870835A (en) Telephone switching system

Country Status (1)

Country Link
CA (1) CA870835A (en)

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