CA299443A - Systeme telephonique - Google Patents

Systeme telephonique

Info

Publication number
CA299443A
CA299443A CA299443A CA299443DA CA299443A CA 299443 A CA299443 A CA 299443A CA 299443 A CA299443 A CA 299443A CA 299443D A CA299443D A CA 299443DA CA 299443 A CA299443 A CA 299443A
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
CA299443A
Other languages
English (en)
Inventor
E. Dustin George
A. Friend Otto
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.)
INTERNATIONAL WESTERN ELECTRIC Co
AT&T Inc
Original Assignee
INTERNATIONAL WESTERN ELECTRIC Co
Western Electric Co Inc
Publication date
Application granted granted Critical
Publication of CA299443A publication Critical patent/CA299443A/fr
Expired legal-status Critical Current

Links

CA299443A Systeme telephonique Expired CA299443A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA299443T

Publications (1)

Publication Number Publication Date
CA299443A true CA299443A (fr) 1930-04-15

Family

ID=35236762

Family Applications (1)

Application Number Title Priority Date Filing Date
CA299443A Expired CA299443A (fr) Systeme telephonique

Country Status (1)

Country Link
CA (1) CA299443A (fr)

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