CA151989A - Appareil d'echange telephonique - Google Patents

Appareil d'echange telephonique

Info

Publication number
CA151989A
CA151989A CA000151989A CA151989DA CA151989A CA 151989 A CA151989 A CA 151989A CA 000151989 A CA000151989 A CA 000151989A CA 151989D A CA151989D A CA 151989DA CA 151989 A CA151989 A CA 151989A
Authority
CA
Canada
Prior art keywords
switching apparatus
switching
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
CA000151989A
Other languages
English (en)
Inventor
Albert Morrison Bullard
John Newberry Reynolds
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.)
Northern Electric and Manufacturing Co Ltd
Original Assignee
Northern Electric and Manufacturing Co Ltd
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 Northern Electric and Manufacturing Co Ltd filed Critical Northern Electric and Manufacturing Co Ltd
Application granted granted Critical
Publication of CA151989A publication Critical patent/CA151989A/fr
Expired legal-status Critical Current

Links

CA000151989A 1911-02-22 1911-02-22 Appareil d'echange telephonique Expired CA151989A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA151989T 1911-02-22

Publications (1)

Publication Number Publication Date
CA151989A true CA151989A (fr) 1913-11-25

Family

ID=45271701

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000151989A Expired CA151989A (fr) 1911-02-22 1911-02-22 Appareil d'echange telephonique

Country Status (1)

Country Link
CA (1) CA151989A (fr)

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