CA459347A - Dispositif indicateur d'appels telephoniques - Google Patents

Dispositif indicateur d'appels telephoniques

Info

Publication number
CA459347A
CA459347A CA459347A CA459347DA CA459347A CA 459347 A CA459347 A CA 459347A CA 459347 A CA459347 A CA 459347A CA 459347D A CA459347D A CA 459347DA CA 459347 A CA459347 A CA 459347A
Authority
CA
Canada
Prior art keywords
telephone call
indicating facility
facility
indicating
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
CA459347A
Other languages
English (en)
Inventor
M. Boardman Edward
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 CA459347A publication Critical patent/CA459347A/fr
Expired legal-status Critical Current

Links

CA459347A Dispositif indicateur d'appels telephoniques Expired CA459347A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA459347T

Publications (1)

Publication Number Publication Date
CA459347A true CA459347A (fr) 1949-08-30

Family

ID=35578176

Family Applications (1)

Application Number Title Priority Date Filing Date
CA459347A Expired CA459347A (fr) Dispositif indicateur d'appels telephoniques

Country Status (1)

Country Link
CA (1) CA459347A (fr)

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