CA172010A - Telephone system - Google Patents

Telephone system

Info

Publication number
CA172010A
CA172010A CA000172010A CA172010DA CA172010A CA 172010 A CA172010 A CA 172010A CA 000172010 A CA000172010 A CA 000172010A CA 172010D A CA172010D A CA 172010DA CA 172010 A CA172010 A CA 172010A
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
CA000172010A
Other languages
French (fr)
Inventor
William Aitken
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.)
Relay Automatic Telephone Company Ltd
Original Assignee
Relay Automatic Telephone Company Ltd
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 Relay Automatic Telephone Company Ltd filed Critical Relay Automatic Telephone Company Ltd
Application granted granted Critical
Publication of CA172010A publication Critical patent/CA172010A/en
Expired legal-status Critical Current

Links

CA000172010A 1915-08-24 1915-08-24 Telephone system Expired CA172010A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA172010T 1915-08-24

Publications (1)

Publication Number Publication Date
CA172010A true CA172010A (en) 1916-09-19

Family

ID=45291666

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000172010A Expired CA172010A (en) 1915-08-24 1915-08-24 Telephone system

Country Status (1)

Country Link
CA (1) CA172010A (en)

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