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CA333301A - Systeme de central telephonique au nombre d'appels - Google Patents

Systeme de central telephonique au nombre d'appels

Info

Publication number
CA333301A
CA333301A CA333301A CA333301DA CA333301A CA 333301 A CA333301 A CA 333301A CA 333301 A CA333301 A CA 333301A CA 333301D A CA333301D A CA 333301DA CA 333301 A CA333301 A CA 333301A
Authority
CA
Canada
Prior art keywords
exchange system
telephone exchange
call charging
charging telephone
call
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
CA333301A
Other languages
English (en)
Inventor
Howes Johnson Lewis
Stewart Gibson Earl
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 CA333301A publication Critical patent/CA333301A/fr
Expired legal-status Critical Current

Links

CA333301A Systeme de central telephonique au nombre d'appels Expired CA333301A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA333301T

Publications (1)

Publication Number Publication Date
CA333301A true CA333301A (fr) 1933-06-13

Family

ID=35296443

Family Applications (1)

Application Number Title Priority Date Filing Date
CA333301A Expired CA333301A (fr) Systeme de central telephonique au nombre d'appels

Country Status (1)

Country Link
CA (1) CA333301A (fr)

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