CA175397A - Telephone system - Google Patents

Telephone system

Info

Publication number
CA175397A
CA175397A CA000175397A CA175397DA CA175397A CA 175397 A CA175397 A CA 175397A CA 000175397 A CA000175397 A CA 000175397A CA 175397D A CA175397D A CA 175397DA CA 175397 A CA175397 A CA 175397A
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
CA000175397A
Other languages
French (fr)
Inventor
Talbot G. Martin
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 CA175397A publication Critical patent/CA175397A/en
Expired legal-status Critical Current

Links

CA000175397A 1915-01-11 1915-01-11 Telephone system Expired CA175397A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA175397T 1915-01-11

Publications (1)

Publication Number Publication Date
CA175397A true CA175397A (en) 1917-02-27

Family

ID=45295050

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000175397A Expired CA175397A (en) 1915-01-11 1915-01-11 Telephone system

Country Status (1)

Country Link
CA (1) CA175397A (en)

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