CA367057A - Telephone exchange system - Google Patents

Telephone exchange system

Info

Publication number
CA367057A
CA367057A CA367057A CA367057DA CA367057A CA 367057 A CA367057 A CA 367057A CA 367057 A CA367057 A CA 367057A CA 367057D A CA367057D A CA 367057DA CA 367057 A CA367057 A CA 367057A
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
CA367057A
Other languages
French (fr)
Inventor
Hatton William
Henry Bryant George
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 CA367057A publication Critical patent/CA367057A/en
Expired legal-status Critical Current

Links

CA367057A Telephone exchange system Expired CA367057A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA367057T

Publications (1)

Publication Number Publication Date
CA367057A true CA367057A (en) 1937-06-29

Family

ID=35368125

Family Applications (1)

Application Number Title Priority Date Filing Date
CA367057A Expired CA367057A (en) Telephone exchange system

Country Status (1)

Country Link
CA (1) CA367057A (en)

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