CA496550A - Telephone switching system - Google Patents

Telephone switching system

Info

Publication number
CA496550A
CA496550A CA496550A CA496550DA CA496550A CA 496550 A CA496550 A CA 496550A CA 496550 A CA496550 A CA 496550A CA 496550D A CA496550D A CA 496550DA CA 496550 A CA496550 A CA 496550A
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
CA496550A
Other languages
French (fr)
Inventor
A. Malthaner 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
Publication date
Application granted granted Critical
Publication of CA496550A publication Critical patent/CA496550A/en
Expired legal-status Critical Current

Links

CA496550A Telephone switching system Expired CA496550A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA496550T

Publications (1)

Publication Number Publication Date
CA496550A true CA496550A (en) 1953-09-29

Family

ID=35641975

Family Applications (1)

Application Number Title Priority Date Filing Date
CA496550A Expired CA496550A (en) Telephone switching system

Country Status (1)

Country Link
CA (1) CA496550A (en)

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