CA453058A - Systeme telephonique - Google Patents

Systeme telephonique

Info

Publication number
CA453058A
CA453058A CA453058A CA453058DA CA453058A CA 453058 A CA453058 A CA 453058A CA 453058 A CA453058 A CA 453058A CA 453058D A CA453058D A CA 453058DA CA 453058 A CA453058 A CA 453058A
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
CA453058A
Other languages
English (en)
Inventor
Mckim Burton
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
Bell Telephone Laboratories Inc
Publication date
Application granted granted Critical
Publication of CA453058A publication Critical patent/CA453058A/fr
Expired legal-status Critical Current

Links

CA453058A Systeme telephonique Expired CA453058A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA453058T

Publications (1)

Publication Number Publication Date
CA453058A true CA453058A (fr) 1948-11-30

Family

ID=35570786

Family Applications (1)

Application Number Title Priority Date Filing Date
CA453058A Expired CA453058A (fr) Systeme telephonique

Country Status (1)

Country Link
CA (1) CA453058A (fr)

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