CA169169A - Systeme d'echange telephonique - Google Patents

Systeme d'echange telephonique

Info

Publication number
CA169169A
CA169169A CA000169169A CA169169DA CA169169A CA 169169 A CA169169 A CA 169169A CA 000169169 A CA000169169 A CA 000169169A CA 169169D A CA169169D A CA 169169DA CA 169169 A CA169169 A CA 169169A
Authority
CA
Canada
Prior art keywords
exchange system
telephone exchange
telephone
exchange
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
CA000169169A
Other languages
English (en)
Inventor
John N. Reynolds
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
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Western Electric Co Inc filed Critical Western Electric Co Inc
Application granted granted Critical
Publication of CA169169A publication Critical patent/CA169169A/fr
Expired legal-status Critical Current

Links

CA000169169A 1915-03-20 1915-03-20 Systeme d'echange telephonique Expired CA169169A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA169169T 1915-03-20

Publications (1)

Publication Number Publication Date
CA169169A true CA169169A (fr) 1916-05-02

Family

ID=45288833

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000169169A Expired CA169169A (fr) 1915-03-20 1915-03-20 Systeme d'echange telephonique

Country Status (1)

Country Link
CA (1) CA169169A (fr)

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