CA451267A - Systeme telephonique - Google Patents

Systeme telephonique

Info

Publication number
CA451267A
CA451267A CA451267A CA451267DA CA451267A CA 451267 A CA451267 A CA 451267A CA 451267 A CA451267 A CA 451267A CA 451267D A CA451267D A CA 451267DA CA 451267 A CA451267 A CA 451267A
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
CA451267A
Other languages
English (en)
Inventor
S. Rhoads Charles
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
American Telephone and Telegraph Co Inc
Western Electric Co Inc
Publication date
Application granted granted Critical
Publication of CA451267A publication Critical patent/CA451267A/fr
Expired legal-status Critical Current

Links

CA451267A Systeme telephonique Expired CA451267A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA451267T

Publications (1)

Publication Number Publication Date
CA451267A true CA451267A (fr) 1948-09-14

Family

ID=35568992

Family Applications (1)

Application Number Title Priority Date Filing Date
CA451267A Expired CA451267A (fr) Systeme telephonique

Country Status (1)

Country Link
CA (1) CA451267A (fr)

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