CA178516A - Telephone system - Google Patents

Telephone system

Info

Publication number
CA178516A
CA178516A CA000178516A CA178516DA CA178516A CA 178516 A CA178516 A CA 178516A CA 000178516 A CA000178516 A CA 000178516A CA 178516D A CA178516D A CA 178516DA CA 178516 A CA178516 A CA 178516A
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
CA000178516A
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 CA178516A publication Critical patent/CA178516A/en
Expired legal-status Critical Current

Links

CA000178516A 1914-02-20 1914-02-20 Telephone system Expired CA178516A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA178516T 1914-02-20

Publications (1)

Publication Number Publication Date
CA178516A true CA178516A (en) 1917-07-31

Family

ID=45298169

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000178516A Expired CA178516A (en) 1914-02-20 1914-02-20 Telephone system

Country Status (1)

Country Link
CA (1) CA178516A (en)

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