CA178870A - Systeme telephonique - Google Patents

Systeme telephonique

Info

Publication number
CA178870A
CA178870A CA000178870A CA178870DA CA178870A CA 178870 A CA178870 A CA 178870A CA 000178870 A CA000178870 A CA 000178870A CA 178870D A CA178870D A CA 178870DA CA 178870 A CA178870 A CA 178870A
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
CA000178870A
Other languages
English (en)
Inventor
Bernard D. Willis
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 CA178870A publication Critical patent/CA178870A/fr
Expired legal-status Critical Current

Links

CA000178870A 1913-12-29 1913-12-29 Systeme telephonique Expired CA178870A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA178870T 1913-12-29

Publications (1)

Publication Number Publication Date
CA178870A true CA178870A (fr) 1917-08-21

Family

ID=45298523

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000178870A Expired CA178870A (fr) 1913-12-29 1913-12-29 Systeme telephonique

Country Status (1)

Country Link
CA (1) CA178870A (fr)

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