CA178635A - Systeme telephonique - Google Patents

Systeme telephonique

Info

Publication number
CA178635A
CA178635A CA000178635A CA178635DA CA178635A CA 178635 A CA178635 A CA 178635A CA 000178635 A CA000178635 A CA 000178635A CA 178635D A CA178635D A CA 178635DA CA 178635 A CA178635 A CA 178635A
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
CA000178635A
Other languages
English (en)
Inventor
G.A. Yanochowski
Mary E. Hershey
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 CA178635A publication Critical patent/CA178635A/fr
Expired legal-status Critical Current

Links

CA000178635A 1914-02-20 1914-02-20 Systeme telephonique Expired CA178635A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA178635T 1914-02-20

Publications (1)

Publication Number Publication Date
CA178635A true CA178635A (fr) 1917-08-07

Family

ID=45298288

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000178635A Expired CA178635A (fr) 1914-02-20 1914-02-20 Systeme telephonique

Country Status (1)

Country Link
CA (1) CA178635A (fr)

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