CA495790A - Systeme d'identification de ligne d'appel - Google Patents

Systeme d'identification de ligne d'appel

Info

Publication number
CA495790A
CA495790A CA495790A CA495790DA CA495790A CA 495790 A CA495790 A CA 495790A CA 495790 A CA495790 A CA 495790A CA 495790D A CA495790D A CA 495790DA CA 495790 A CA495790 A CA 495790A
Authority
CA
Canada
Prior art keywords
identification system
line identification
calling line
calling
line
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
CA495790A
Other languages
English (en)
Inventor
E. Hersey Ralph
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
Publication date
Application granted granted Critical
Publication of CA495790A publication Critical patent/CA495790A/fr
Expired legal-status Critical Current

Links

CA495790A Systeme d'identification de ligne d'appel Expired CA495790A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA495790T

Publications (1)

Publication Number Publication Date
CA495790A true CA495790A (fr) 1953-09-01

Family

ID=35641204

Family Applications (1)

Application Number Title Priority Date Filing Date
CA495790A Expired CA495790A (fr) Systeme d'identification de ligne d'appel

Country Status (1)

Country Link
CA (1) CA495790A (fr)

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