CA68899A - Signal d'echange de telephone - Google Patents

Signal d'echange de telephone

Info

Publication number
CA68899A
CA68899A CA000068899A CA68899DA CA68899A CA 68899 A CA68899 A CA 68899A CA 000068899 A CA000068899 A CA 000068899A CA 68899D A CA68899D A CA 68899DA CA 68899 A CA68899 A CA 68899A
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
CA000068899A
Other languages
English (en)
Inventor
Joseph John O'connor
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 CA68899A publication Critical patent/CA68899A/fr
Expired legal-status Critical Current

Links

CA000068899A 1900-03-21 1900-03-21 Signal d'echange de telephone Expired CA68899A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA68899T 1900-03-21

Publications (1)

Publication Number Publication Date
CA68899A true CA68899A (fr) 1900-10-04

Family

ID=45185437

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000068899A Expired CA68899A (fr) 1900-03-21 1900-03-21 Signal d'echange de telephone

Country Status (1)

Country Link
CA (1) CA68899A (fr)

Similar Documents

Publication Publication Date Title
CA68899A (fr) Signal d'echange de telephone
CA66822A (fr) Signal d'echange de telephone
CA69790A (fr) Signal de telephone
CA69861A (fr) Signal de telephones
CA68900A (fr) Echange de telephone
CA69862A (fr) Commutateur de telephones
CA72114A (fr) Signal pour commutateurs de telephone
CA69755A (fr) Echange de telephone
CA60012A (fr) Signal pour echange de telephone
CA68723A (fr) Signal de telephone
CA68933A (fr) Signal pour echange de telephone
CA72113A (fr) Signal pour commutateurs de telephone
CA74682A (fr) Circuit de telephone
CA66801A (fr) Telephone
CA82775A (fr) Signal d'echange de telephone
CA69671A (fr) Relais telephonique
CA67297A (fr) Transmetteur de telephone
CA69922A (fr) Signal de telephones
CA74423A (fr) Signal de telephone
CA72883A (fr) Signal electrique
CA92377A (fr) Signal pour exchanges telephoniques
CA72974A (fr) Signal pour lignes de telephones
CA72975A (fr) Signal pour lignes de telephones
CA72112A (fr) Commutateur de telephone
CA81668A (fr) Commutateur de telephone