CA177469A - Telephone system - Google Patents

Telephone system

Info

Publication number
CA177469A
CA177469A CA000177469A CA177469DA CA177469A CA 177469 A CA177469 A CA 177469A CA 000177469 A CA000177469 A CA 000177469A CA 177469D A CA177469D A CA 177469DA CA 177469 A CA177469 A CA 177469A
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
CA000177469A
Other languages
French (fr)
Inventor
Harry E. Hershey
George A. Yanochowski
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 CA177469A publication Critical patent/CA177469A/en
Expired legal-status Critical Current

Links

CA000177469A 1914-02-20 1914-02-20 Telephone system Expired CA177469A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA177469T 1914-02-20

Publications (1)

Publication Number Publication Date
CA177469A true CA177469A (en) 1917-06-05

Family

ID=45297122

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000177469A Expired CA177469A (en) 1914-02-20 1914-02-20 Telephone system

Country Status (1)

Country Link
CA (1) CA177469A (en)

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