CA443407A - Telephone system - Google Patents

Telephone system

Info

Publication number
CA443407A
CA443407A CA443407A CA443407DA CA443407A CA 443407 A CA443407 A CA 443407A CA 443407 A CA443407 A CA 443407A CA 443407D A CA443407D A CA 443407DA CA 443407 A CA443407 A CA 443407A
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
CA443407A
Other languages
French (fr)
Inventor
Gillings Charles
Edmund Beale Charles
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 Telephone and Electric Co Ltd
Original Assignee
Automatic Telephone and Electric Co Ltd
Publication date
Application granted granted Critical
Publication of CA443407A publication Critical patent/CA443407A/en
Expired legal-status Critical Current

Links

CA443407A Telephone system Expired CA443407A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA443407T

Publications (1)

Publication Number Publication Date
CA443407A true CA443407A (en) 1947-08-05

Family

ID=35558634

Family Applications (1)

Application Number Title Priority Date Filing Date
CA443407A Expired CA443407A (en) Telephone system

Country Status (1)

Country Link
CA (1) CA443407A (en)

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