CA181642A - Systeme telephonique - Google Patents

Systeme telephonique

Info

Publication number
CA181642A
CA181642A CA000181642A CA181642DA CA181642A CA 181642 A CA181642 A CA 181642A CA 000181642 A CA000181642 A CA 000181642A CA 181642D A CA181642D A CA 181642DA CA 181642 A CA181642 A CA 181642A
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
CA000181642A
Other languages
English (en)
Inventor
Frank J. Newforth
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 CA181642A publication Critical patent/CA181642A/fr
Expired legal-status Critical Current

Links

CA000181642A 1916-12-13 1916-12-13 Systeme telephonique Expired CA181642A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA181642T 1916-12-13

Publications (1)

Publication Number Publication Date
CA181642A true CA181642A (fr) 1918-01-15

Family

ID=45301294

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000181642A Expired CA181642A (fr) 1916-12-13 1916-12-13 Systeme telephonique

Country Status (1)

Country Link
CA (1) CA181642A (fr)

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