CA140338A - Telephone system - Google Patents

Telephone system

Info

Publication number
CA140338A
CA140338A CA000140338A CA140338DA CA140338A CA 140338 A CA140338 A CA 140338A CA 000140338 A CA000140338 A CA 000140338A CA 140338D A CA140338D A CA 140338DA CA 140338 A CA140338 A CA 140338A
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
CA000140338A
Other languages
French (fr)
Inventor
John Erickson
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 CA140338A publication Critical patent/CA140338A/en
Expired legal-status Critical Current

Links

CA000140338A 1912-02-27 1912-02-27 Telephone system Expired CA140338A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA140338T 1912-02-27

Publications (1)

Publication Number Publication Date
CA140338A true CA140338A (en) 1912-05-14

Family

ID=45260054

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000140338A Expired CA140338A (en) 1912-02-27 1912-02-27 Telephone system

Country Status (1)

Country Link
CA (1) CA140338A (en)

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