CA445446A - Systeme telephonique - Google Patents

Systeme telephonique

Info

Publication number
CA445446A
CA445446A CA445446A CA445446DA CA445446A CA 445446 A CA445446 A CA 445446A CA 445446 A CA445446 A CA 445446A CA 445446D A CA445446D A CA 445446DA CA 445446 A CA445446 A CA 445446A
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
CA445446A
Other languages
English (en)
Inventor
William Thompson George
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 CA445446A publication Critical patent/CA445446A/fr
Expired legal-status Critical Current

Links

CA445446A Systeme telephonique Expired CA445446A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA445446T

Publications (1)

Publication Number Publication Date
CA445446A true CA445446A (fr) 1947-12-09

Family

ID=35563101

Family Applications (1)

Application Number Title Priority Date Filing Date
CA445446A Expired CA445446A (fr) Systeme telephonique

Country Status (1)

Country Link
CA (1) CA445446A (fr)

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