CA69790A - Signal de telephone - Google Patents

Signal de telephone

Info

Publication number
CA69790A
CA69790A CA000069790A CA69790DA CA69790A CA 69790 A CA69790 A CA 69790A CA 000069790 A CA000069790 A CA 000069790A CA 69790D A CA69790D A CA 69790DA CA 69790 A CA69790 A CA 69790A
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
CA000069790A
Other languages
English (en)
Inventor
Newman Henry Holland
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 CA69790A publication Critical patent/CA69790A/fr
Expired legal-status Critical Current

Links

CA000069790A 1900-04-19 1900-04-19 Signal de telephone Expired CA69790A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA69790T 1900-04-19

Publications (1)

Publication Number Publication Date
CA69790A true CA69790A (fr) 1901-01-03

Family

ID=45186328

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000069790A Expired CA69790A (fr) 1900-04-19 1900-04-19 Signal de telephone

Country Status (1)

Country Link
CA (1) CA69790A (fr)

Similar Documents

Publication Publication Date Title
CA69861A (fr) Signal de telephones
CA66822A (fr) Signal d'echange de telephone
CA68899A (fr) Signal d'echange de telephone
CA66801A (fr) Telephone
CA69364A (fr) Signal
CA67297A (fr) Transmetteur de telephone
CA74682A (fr) Circuit de telephone
CA72883A (fr) Signal electrique
CA68900A (fr) Echange de telephone
CA69862A (fr) Commutateur de telephones
CA69755A (fr) Echange de telephone
CA74423A (fr) Signal de telephone
CA69922A (fr) Signal de telephones
CA70642A (fr) Reproducteur de graphophone
CA72012A (fr) Telephone non electrique
CA66735A (fr) Sifflet
CA69540A (fr) Appareil telephonique
CA72730A (fr) Appareil de telephone
CA69671A (fr) Relais telephonique
CA67254A (fr) Transmetteur de signal multiple
CA82775A (fr) Signal d'echange de telephone
CA70849A (fr) Telephone
CA67736A (fr) Halteres
CA66796A (fr) Graphophone
CA68353A (fr) Pupitre de telephone