CA290043A - Systeme telephonique - Google Patents

Systeme telephonique

Info

Publication number
CA290043A
CA290043A CA290043A CA290043DA CA290043A CA 290043 A CA290043 A CA 290043A CA 290043 A CA290043 A CA 290043A CA 290043D A CA290043D A CA 290043DA CA 290043 A CA290043 A CA 290043A
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
CA290043A
Other languages
English (en)
Inventor
E. Hague Alfred
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 CA290043A publication Critical patent/CA290043A/fr
Expired legal-status Critical Current

Links

CA290043A Systeme telephonique Expired CA290043A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA290043T

Publications (1)

Publication Number Publication Date
CA290043A true CA290043A (fr) 1929-05-28

Family

ID=35226855

Family Applications (1)

Application Number Title Priority Date Filing Date
CA290043A Expired CA290043A (fr) Systeme telephonique

Country Status (1)

Country Link
CA (1) CA290043A (fr)

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