CA416953A - Systeme telephonique - Google Patents

Systeme telephonique

Info

Publication number
CA416953A
CA416953A CA416953A CA416953DA CA416953A CA 416953 A CA416953 A CA 416953A CA 416953 A CA416953 A CA 416953A CA 416953D A CA416953D A CA 416953DA CA 416953 A CA416953 A CA 416953A
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
CA416953A
Other languages
English (en)
Inventor
Winchester Wadsworth Paul
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
Bell Telephone Laboratories Inc
Publication date
Application granted granted Critical
Publication of CA416953A publication Critical patent/CA416953A/fr
Expired legal-status Critical Current

Links

CA416953A Systeme telephonique Expired CA416953A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA416953T

Publications (1)

Publication Number Publication Date
CA416953A true CA416953A (fr) 1943-12-07

Family

ID=35526188

Family Applications (1)

Application Number Title Priority Date Filing Date
CA416953A Expired CA416953A (fr) Systeme telephonique

Country Status (1)

Country Link
CA (1) CA416953A (fr)

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