CA179366A - Systeme d'echange telephonique - Google Patents

Systeme d'echange telephonique

Info

Publication number
CA179366A
CA179366A CA000179366A CA179366DA CA179366A CA 179366 A CA179366 A CA 179366A CA 000179366 A CA000179366 A CA 000179366A CA 179366D A CA179366D A CA 179366DA CA 179366 A CA179366 A CA 179366A
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
CA000179366A
Other languages
English (en)
Inventor
Alfred Hartwell Dyson
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 CA179366A publication Critical patent/CA179366A/fr
Expired legal-status Critical Current

Links

CA000179366A 1916-03-15 1916-03-15 Systeme d'echange telephonique Expired CA179366A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA179366T 1916-03-15

Publications (1)

Publication Number Publication Date
CA179366A true CA179366A (fr) 1917-09-18

Family

ID=45299019

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000179366A Expired CA179366A (fr) 1916-03-15 1916-03-15 Systeme d'echange telephonique

Country Status (1)

Country Link
CA (1) CA179366A (fr)

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