CA170236A - Telephone system - Google Patents

Telephone system

Info

Publication number
CA170236A
CA170236A CA000170236A CA170236DA CA170236A CA 170236 A CA170236 A CA 170236A CA 000170236 A CA000170236 A CA 000170236A CA 170236D A CA170236D A CA 170236DA CA 170236 A CA170236 A CA 170236A
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
CA000170236A
Other languages
French (fr)
Inventor
Harry E. Hersey
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 CA170236A publication Critical patent/CA170236A/en
Expired legal-status Critical Current

Links

CA000170236A 1914-02-20 1914-02-20 Telephone system Expired CA170236A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA170236T 1914-02-20

Publications (1)

Publication Number Publication Date
CA170236A true CA170236A (en) 1916-06-20

Family

ID=45289898

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000170236A Expired CA170236A (en) 1914-02-20 1914-02-20 Telephone system

Country Status (1)

Country Link
CA (1) CA170236A (en)

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