CA68723A - Signal de telephone - Google Patents

Signal de telephone

Info

Publication number
CA68723A
CA68723A CA000068723A CA68723DA CA68723A CA 68723 A CA68723 A CA 68723A CA 000068723 A CA000068723 A CA 000068723A CA 68723D A CA68723D A CA 68723DA CA 68723 A CA68723 A CA 68723A
Authority
CA
Canada
Prior art keywords
telephone switchboard
switchboard signal
signal
telephone
switchboard
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
CA000068723A
Other languages
English (en)
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 CA68723A publication Critical patent/CA68723A/fr
Expired legal-status Critical Current

Links

CA000068723A 1898-12-09 1898-12-09 Signal de telephone Expired CA68723A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA68723T 1898-12-09

Publications (1)

Publication Number Publication Date
CA68723A true CA68723A (fr) 1900-09-14

Family

ID=45185261

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000068723A Expired CA68723A (fr) 1898-12-09 1898-12-09 Signal de telephone

Country Status (1)

Country Link
CA (1) CA68723A (fr)

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