CA72114A - Signal pour commutateurs de telephone - Google Patents

Signal pour commutateurs de telephone

Info

Publication number
CA72114A
CA72114A CA000072114A CA72114DA CA72114A CA 72114 A CA72114 A CA 72114A CA 000072114 A CA000072114 A CA 000072114A CA 72114D A CA72114D A CA 72114DA CA 72114 A CA72114 A CA 72114A
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
CA000072114A
Other languages
English (en)
Inventor
William Warren Dean
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 CA72114A publication Critical patent/CA72114A/fr
Expired legal-status Critical Current

Links

CA000072114A 1901-04-19 1901-04-19 Signal pour commutateurs de telephone Expired CA72114A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA72114T 1901-04-19

Publications (1)

Publication Number Publication Date
CA72114A true CA72114A (fr) 1901-07-02

Family

ID=45188651

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000072114A Expired CA72114A (fr) 1901-04-19 1901-04-19 Signal pour commutateurs de telephone

Country Status (1)

Country Link
CA (1) CA72114A (fr)

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