CA146915A - Telephone exchange system - Google Patents

Telephone exchange system

Info

Publication number
CA146915A
CA146915A CA000146915A CA146915DA CA146915A CA 146915 A CA146915 A CA 146915A CA 000146915 A CA000146915 A CA 000146915A CA 146915D A CA146915D A CA 146915DA CA 146915 A CA146915 A CA 146915A
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
CA000146915A
Other languages
French (fr)
Inventor
William Andrew Wynne
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of CA146915A publication Critical patent/CA146915A/en
Expired legal-status Critical Current

Links

CA000146915A 1910-06-13 1910-06-13 Telephone exchange system Expired CA146915A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA146915T 1910-06-13

Publications (1)

Publication Number Publication Date
CA146915A true CA146915A (en) 1913-03-25

Family

ID=45266629

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000146915A Expired CA146915A (en) 1910-06-13 1910-06-13 Telephone exchange system

Country Status (1)

Country Link
CA (1) CA146915A (en)

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