CA378448A - Systeme telephonique - Google Patents

Systeme telephonique

Info

Publication number
CA378448A
CA378448A CA378448A CA378448DA CA378448A CA 378448 A CA378448 A CA 378448A CA 378448 A CA378448 A CA 378448A CA 378448D A CA378448D A CA 378448DA CA 378448 A CA378448 A CA 378448A
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
CA378448A
Other languages
English (en)
Inventor
Hovland Henry
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 CA378448A publication Critical patent/CA378448A/fr
Expired legal-status Critical Current

Links

CA378448A Systeme telephonique Expired CA378448A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA378448T

Publications (1)

Publication Number Publication Date
CA378448A true CA378448A (fr) 1938-12-20

Family

ID=35382773

Family Applications (1)

Application Number Title Priority Date Filing Date
CA378448A Expired CA378448A (fr) Systeme telephonique

Country Status (1)

Country Link
CA (1) CA378448A (fr)

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