CA182584A - Systeme d'echange telephonique - Google Patents

Systeme d'echange telephonique

Info

Publication number
CA182584A
CA182584A CA000182584A CA182584DA CA182584A CA 182584 A CA182584 A CA 182584A CA 000182584 A CA000182584 A CA 000182584A CA 182584D A CA182584D A CA 182584DA CA 182584 A CA182584 A CA 182584A
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
CA000182584A
Other languages
English (en)
Inventor
Charles Lane Goodrum
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 CA182584A publication Critical patent/CA182584A/fr
Expired legal-status Critical Current

Links

CA000182584A 1916-07-31 1916-07-31 Systeme d'echange telephonique Expired CA182584A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA182584T 1916-07-31

Publications (1)

Publication Number Publication Date
CA182584A true CA182584A (fr) 1918-02-26

Family

ID=45302236

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000182584A Expired CA182584A (fr) 1916-07-31 1916-07-31 Systeme d'echange telephonique

Country Status (1)

Country Link
CA (1) CA182584A (fr)

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