CA169171A - Telephone switching system - Google Patents

Telephone switching system

Info

Publication number
CA169171A
CA169171A CA000169171A CA169171DA CA169171A CA 169171 A CA169171 A CA 169171A CA 000169171 A CA000169171 A CA 000169171A CA 169171D A CA169171D A CA 169171DA CA 169171 A CA169171 A CA 169171A
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
CA000169171A
Other languages
French (fr)
Inventor
Alfred Hartwell Dyson
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
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Western Electric Co Inc filed Critical Western Electric Co Inc
Application granted granted Critical
Publication of CA169171A publication Critical patent/CA169171A/en
Expired legal-status Critical Current

Links

CA000169171A 1915-04-03 1915-04-03 Telephone switching system Expired CA169171A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA169171T 1915-04-03

Publications (1)

Publication Number Publication Date
CA169171A true CA169171A (en) 1916-05-02

Family

ID=45288835

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000169171A Expired CA169171A (en) 1915-04-03 1915-04-03 Telephone switching system

Country Status (1)

Country Link
CA (1) CA169171A (en)

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