CA411742A - Systeme telephonique - Google Patents

Systeme telephonique

Info

Publication number
CA411742A
CA411742A CA411742A CA411742DA CA411742A CA 411742 A CA411742 A CA 411742A CA 411742 A CA411742 A CA 411742A CA 411742D A CA411742D A CA 411742DA CA 411742 A CA411742 A CA 411742A
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
CA411742A
Other languages
English (en)
Inventor
Hugh Williams Austin
William Mcclew John
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 CA411742A publication Critical patent/CA411742A/fr
Expired legal-status Critical Current

Links

CA411742A Systeme telephonique Expired CA411742A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA411742T

Publications (1)

Publication Number Publication Date
CA411742A true CA411742A (fr) 1943-04-13

Family

ID=35423045

Family Applications (1)

Application Number Title Priority Date Filing Date
CA411742A Expired CA411742A (fr) Systeme telephonique

Country Status (1)

Country Link
CA (1) CA411742A (fr)

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