CA186185A - Telephone system - Google Patents

Telephone system

Info

Publication number
CA186185A
CA186185A CA000186185A CA186185DA CA186185A CA 186185 A CA186185 A CA 186185A CA 000186185 A CA000186185 A CA 000186185A CA 186185D A CA186185D A CA 186185DA CA 186185 A CA186185 A CA 186185A
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
CA000186185A
Other languages
French (fr)
Inventor
John A. Hall
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.)
AT&T Corp
Original Assignee
Western Electric Co Inc
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 Western Electric Co Inc filed Critical Western Electric Co Inc
Application granted granted Critical
Publication of CA186185A publication Critical patent/CA186185A/en
Expired legal-status Critical Current

Links

CA000186185A 1917-09-24 1917-09-24 Telephone system Expired CA186185A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA186185T 1917-09-24

Publications (1)

Publication Number Publication Date
CA186185A true CA186185A (en) 1918-08-20

Family

ID=45305837

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000186185A Expired CA186185A (en) 1917-09-24 1917-09-24 Telephone system

Country Status (1)

Country Link
CA (1) CA186185A (en)

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