CA82775A - Telephone exchange signal - Google Patents

Telephone exchange signal

Info

Publication number
CA82775A
CA82775A CA000082775A CA82775DA CA82775A CA 82775 A CA82775 A CA 82775A CA 000082775 A CA000082775 A CA 000082775A CA 82775D A CA82775D A CA 82775DA CA 82775 A CA82775 A CA 82775A
Authority
CA
Canada
Prior art keywords
telephone exchange
exchange signal
signal
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
CA000082775A
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 CA82775A publication Critical patent/CA82775A/en
Expired legal-status Critical Current

Links

CA000082775A 1901-06-11 1901-06-11 Telephone exchange signal Expired CA82775A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA82775T 1901-06-11

Publications (1)

Publication Number Publication Date
CA82775A true CA82775A (en) 1903-09-01

Family

ID=45199311

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000082775A Expired CA82775A (en) 1901-06-11 1901-06-11 Telephone exchange signal

Country Status (1)

Country Link
CA (1) CA82775A (en)

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