CA334400A - Telephone exchange system - Google Patents

Telephone exchange system

Info

Publication number
CA334400A
CA334400A CA334400A CA334400DA CA334400A CA 334400 A CA334400 A CA 334400A CA 334400 A CA334400 A CA 334400A CA 334400D A CA334400D A CA 334400DA CA 334400 A CA334400 A CA 334400A
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
CA334400A
Other languages
French (fr)
Inventor
Devriendt Charles
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 CA334400A publication Critical patent/CA334400A/en
Expired legal-status Critical Current

Links

CA334400A Telephone exchange system Expired CA334400A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA334400T

Publications (1)

Publication Number Publication Date
CA334400A true CA334400A (en) 1933-07-25

Family

ID=35297541

Family Applications (1)

Application Number Title Priority Date Filing Date
CA334400A Expired CA334400A (en) Telephone exchange system

Country Status (1)

Country Link
CA (1) CA334400A (en)

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