CA169331A - Systeme d'echange telephonique - Google Patents

Systeme d'echange telephonique

Info

Publication number
CA169331A
CA169331A CA000169331A CA169331DA CA169331A CA 169331 A CA169331 A CA 169331A CA 000169331 A CA000169331 A CA 000169331A CA 169331D A CA169331D A CA 169331DA CA 169331 A CA169331 A CA 169331A
Authority
CA
Canada
Prior art keywords
exchange system
telephone exchange
telephone
exchange
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
CA000169331A
Other languages
English (en)
Inventor
John William Turner
David Henry Kennedy
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of CA169331A publication Critical patent/CA169331A/fr
Expired legal-status Critical Current

Links

CA000169331A 1914-03-11 1914-03-11 Systeme d'echange telephonique Expired CA169331A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA169331T 1914-03-11

Publications (1)

Publication Number Publication Date
CA169331A true CA169331A (fr) 1916-05-09

Family

ID=45288995

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000169331A Expired CA169331A (fr) 1914-03-11 1914-03-11 Systeme d'echange telephonique

Country Status (1)

Country Link
CA (1) CA169331A (fr)

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