CA178264A - Systeme d'echange telephonique - Google Patents

Systeme d'echange telephonique

Info

Publication number
CA178264A
CA178264A CA000178264A CA178264DA CA178264A CA 178264 A CA178264 A CA 178264A CA 000178264 A CA000178264 A CA 000178264A CA 178264D A CA178264D A CA 178264DA CA 178264 A CA178264 A CA 178264A
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
CA000178264A
Other languages
English (en)
Inventor
Edward B. Craft
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 CA178264A publication Critical patent/CA178264A/fr
Expired legal-status Critical Current

Links

CA000178264A 1915-09-27 1915-09-27 Systeme d'echange telephonique Expired CA178264A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA178264T 1915-09-27

Publications (1)

Publication Number Publication Date
CA178264A true CA178264A (fr) 1917-07-17

Family

ID=45297917

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000178264A Expired CA178264A (fr) 1915-09-27 1915-09-27 Systeme d'echange telephonique

Country Status (1)

Country Link
CA (1) CA178264A (fr)

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