CA416952A - Systeme telephonique - Google Patents

Systeme telephonique

Info

Publication number
CA416952A
CA416952A CA416952A CA416952DA CA416952A CA 416952 A CA416952 A CA 416952A CA 416952 A CA416952 A CA 416952A CA 416952D A CA416952D A CA 416952DA CA 416952 A CA416952 A CA 416952A
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
CA416952A
Other languages
English (en)
Inventor
David Holbrook Bernard
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 CA416952A publication Critical patent/CA416952A/fr
Expired legal-status Critical Current

Links

CA416952A Systeme telephonique Expired CA416952A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA416952T

Publications (1)

Publication Number Publication Date
CA416952A true CA416952A (fr) 1943-12-07

Family

ID=35526187

Family Applications (1)

Application Number Title Priority Date Filing Date
CA416952A Expired CA416952A (fr) Systeme telephonique

Country Status (1)

Country Link
CA (1) CA416952A (fr)

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