CA69861A - Signal de telephones - Google Patents

Signal de telephones

Info

Publication number
CA69861A
CA69861A CA000069861A CA69861DA CA69861A CA 69861 A CA69861 A CA 69861A CA 000069861 A CA000069861 A CA 000069861A CA 69861D A CA69861D A CA 69861DA CA 69861 A CA69861 A CA 69861A
Authority
CA
Canada
Prior art keywords
telephone signal
telephone
signal
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
CA000069861A
Other languages
English (en)
Inventor
George Knox Thompson
Ernest Clifton Robes
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 CA69861A publication Critical patent/CA69861A/fr
Expired legal-status Critical Current

Links

CA000069861A 1900-08-22 1900-08-22 Signal de telephones Expired CA69861A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA69861T 1900-08-22

Publications (1)

Publication Number Publication Date
CA69861A true CA69861A (fr) 1901-01-15

Family

ID=45186399

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000069861A Expired CA69861A (fr) 1900-08-22 1900-08-22 Signal de telephones

Country Status (1)

Country Link
CA (1) CA69861A (fr)

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