CA174947A - Systeme telephonique - Google Patents

Systeme telephonique

Info

Publication number
CA174947A
CA174947A CA000174947A CA174947DA CA174947A CA 174947 A CA174947 A CA 174947A CA 000174947 A CA000174947 A CA 000174947A CA 174947D A CA174947D A CA 174947DA CA 174947 A CA174947 A CA 174947A
Authority
CA
Canada
Prior art keywords
telephone system
telephone
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
CA000174947A
Other languages
English (en)
Inventor
Jerome E. Cooley
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.)
Automatic Electric Co
Original Assignee
Automatic Electric Co
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 Automatic Electric Co filed Critical Automatic Electric Co
Application granted granted Critical
Publication of CA174947A publication Critical patent/CA174947A/fr
Expired legal-status Critical Current

Links

CA000174947A 1914-11-13 1914-11-13 Systeme telephonique Expired CA174947A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA174947T 1914-11-13

Publications (1)

Publication Number Publication Date
CA174947A true CA174947A (fr) 1917-02-06

Family

ID=45294600

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000174947A Expired CA174947A (fr) 1914-11-13 1914-11-13 Systeme telephonique

Country Status (1)

Country Link
CA (1) CA174947A (fr)

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