CA337716A - Telephone exchange system - Google Patents

Telephone exchange system

Info

Publication number
CA337716A
CA337716A CA337716A CA337716DA CA337716A CA 337716 A CA337716 A CA 337716A CA 337716 A CA337716 A CA 337716A CA 337716D A CA337716D A CA 337716DA CA 337716 A CA337716 A CA 337716A
Authority
CA
Canada
Prior art keywords
exchange system
telephone exchange
telephone
exchange
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
CA337716A
Other languages
French (fr)
Inventor
Hovland Henry
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 CA337716A publication Critical patent/CA337716A/en
Expired legal-status Critical Current

Links

CA337716A Telephone exchange system Expired CA337716A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA337716T

Publications (1)

Publication Number Publication Date
CA337716A true CA337716A (en) 1933-12-05

Family

ID=35300857

Family Applications (1)

Application Number Title Priority Date Filing Date
CA337716A Expired CA337716A (en) Telephone exchange system

Country Status (1)

Country Link
CA (1) CA337716A (en)

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