CA345733A - Systeme telephonique - Google Patents

Systeme telephonique

Info

Publication number
CA345733A
CA345733A CA345733A CA345733DA CA345733A CA 345733 A CA345733 A CA 345733A CA 345733 A CA345733 A CA 345733A CA 345733D A CA345733D A CA 345733DA CA 345733 A CA345733 A CA 345733A
Authority
CA
Canada
Prior art keywords
telephone system
telephone
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
CA345733A
Other languages
English (en)
Inventor
Donahue Robb Theodore
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 Inc
Original Assignee
Western Electric Co Inc
Publication date
Application granted granted Critical
Publication of CA345733A publication Critical patent/CA345733A/fr
Expired legal-status Critical Current

Links

CA345733A Systeme telephonique Expired CA345733A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA345733T

Publications (1)

Publication Number Publication Date
CA345733A true CA345733A (fr) 1934-10-30

Family

ID=35317007

Family Applications (1)

Application Number Title Priority Date Filing Date
CA345733A Expired CA345733A (fr) Systeme telephonique

Country Status (1)

Country Link
CA (1) CA345733A (fr)

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