CA53909A - Signalling apparatus for telephone lines - Google Patents

Signalling apparatus for telephone lines

Info

Publication number
CA53909A
CA53909A CA000053909A CA53909DA CA53909A CA 53909 A CA53909 A CA 53909A CA 000053909 A CA000053909 A CA 000053909A CA 53909D A CA53909D A CA 53909DA CA 53909 A CA53909 A CA 53909A
Authority
CA
Canada
Prior art keywords
telephone lines
signalling apparatus
signalling
telephone
lines
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
CA000053909A
Other languages
French (fr)
Inventor
Frank Robert Mcberty
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 CA53909A publication Critical patent/CA53909A/en
Expired legal-status Critical Current

Links

CA000053909A 1896-08-21 1896-08-21 Signalling apparatus for telephone lines Expired CA53909A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA53909T 1896-08-21

Publications (1)

Publication Number Publication Date
CA53909A true CA53909A (en) 1896-10-28

Family

ID=45170448

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000053909A Expired CA53909A (en) 1896-08-21 1896-08-21 Signalling apparatus for telephone lines

Country Status (1)

Country Link
CA (1) CA53909A (en)

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