CA338914A - Systeme telephonique - Google Patents

Systeme telephonique

Info

Publication number
CA338914A
CA338914A CA338914A CA338914DA CA338914A CA 338914 A CA338914 A CA 338914A CA 338914 A CA338914 A CA 338914A CA 338914D A CA338914D A CA 338914DA CA 338914 A CA338914 A CA 338914A
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
CA338914A
Other languages
English (en)
Inventor
John Bowne Langford
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 CA338914A publication Critical patent/CA338914A/fr
Expired legal-status Critical Current

Links

CA338914A Systeme telephonique Expired CA338914A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA338914T

Publications (1)

Publication Number Publication Date
CA338914A true CA338914A (fr) 1934-01-23

Family

ID=35302055

Family Applications (1)

Application Number Title Priority Date Filing Date
CA338914A Expired CA338914A (fr) Systeme telephonique

Country Status (1)

Country Link
CA (1) CA338914A (fr)

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