CA413708A - Telephone system - Google Patents

Telephone system

Info

Publication number
CA413708A
CA413708A CA413708A CA413708DA CA413708A CA 413708 A CA413708 A CA 413708A CA 413708 A CA413708 A CA 413708A CA 413708D A CA413708D A CA 413708DA CA 413708 A CA413708 A CA 413708A
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
CA413708A
Other languages
French (fr)
Inventor
Ernest Lomax Clarence
Original Assignee
Northern Electric Co Ltd
Publication date
Application granted granted Critical
Publication of CA413708A publication Critical patent/CA413708A/en
Expired legal-status Critical Current

Links

CA413708A Telephone system Expired CA413708A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA413708T

Publications (1)

Publication Number Publication Date
CA413708A true CA413708A (en) 1943-07-06

Family

ID=35522887

Family Applications (1)

Application Number Title Priority Date Filing Date
CA413708A Expired CA413708A (en) Telephone system

Country Status (1)

Country Link
CA (1) CA413708A (en)

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