CA294819A - Systeme telephonique - Google Patents

Systeme telephonique

Info

Publication number
CA294819A
CA294819A CA294819A CA294819DA CA294819A CA 294819 A CA294819 A CA 294819A CA 294819 A CA294819 A CA 294819A CA 294819D A CA294819D A CA 294819DA CA 294819 A CA294819 A CA 294819A
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
CA294819A
Other languages
English (en)
Inventor
F. Porter Leslie
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 CA294819A publication Critical patent/CA294819A/fr
Expired legal-status Critical Current

Links

CA294819A Systeme telephonique Expired CA294819A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA294819T

Publications (1)

Publication Number Publication Date
CA294819A true CA294819A (fr) 1929-11-12

Family

ID=35232137

Family Applications (1)

Application Number Title Priority Date Filing Date
CA294819A Expired CA294819A (fr) Systeme telephonique

Country Status (1)

Country Link
CA (1) CA294819A (fr)

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