CA91174A - Telephone exchange system - Google Patents

Telephone exchange system

Info

Publication number
CA91174A
CA91174A CA000091174A CA91174DA CA91174A CA 91174 A CA91174 A CA 91174A CA 000091174 A CA000091174 A CA 000091174A CA 91174D A CA91174D A CA 91174DA CA 91174 A CA91174 A CA 91174A
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
CA000091174A
Other languages
French (fr)
Inventor
Charles Ezra Scribner
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.)
Bell Telephone Company of Canada
Original Assignee
Bell Telephone Company of Canada
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 Bell Telephone Company of Canada filed Critical Bell Telephone Company of Canada
Application granted granted Critical
Publication of CA91174A publication Critical patent/CA91174A/en
Expired legal-status Critical Current

Links

CA000091174A 1898-10-22 1898-10-22 Telephone exchange system Expired CA91174A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA91174T 1898-10-22

Publications (1)

Publication Number Publication Date
CA91174A true CA91174A (en) 1905-01-24

Family

ID=45207709

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000091174A Expired CA91174A (en) 1898-10-22 1898-10-22 Telephone exchange system

Country Status (1)

Country Link
CA (1) CA91174A (en)

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