CA174221A - Telephone system - Google Patents

Telephone system

Info

Publication number
CA174221A
CA174221A CA000174221A CA174221DA CA174221A CA 174221 A CA174221 A CA 174221A CA 000174221 A CA000174221 A CA 000174221A CA 174221D A CA174221D A CA 174221DA CA 174221 A CA174221 A CA 174221A
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
CA000174221A
Other languages
French (fr)
Inventor
Alben E. Lundell
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 CA174221A publication Critical patent/CA174221A/en
Expired legal-status Critical Current

Links

CA000174221A 1915-10-25 1915-10-25 Telephone system Expired CA174221A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA174221T 1915-10-25

Publications (1)

Publication Number Publication Date
CA174221A true CA174221A (en) 1916-12-26

Family

ID=45293874

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000174221A Expired CA174221A (en) 1915-10-25 1915-10-25 Telephone system

Country Status (1)

Country Link
CA (1) CA174221A (en)

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