CA445970A - Systeme telephonique - Google Patents

Systeme telephonique

Info

Publication number
CA445970A
CA445970A CA445970A CA445970DA CA445970A CA 445970 A CA445970 A CA 445970A CA 445970 A CA445970 A CA 445970A CA 445970D A CA445970D A CA 445970DA CA 445970 A CA445970 A CA 445970A
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
CA445970A
Other languages
English (en)
Inventor
Taylor Reginald
Thomas Baker George
Charles Corner Arthur
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 CA445970A publication Critical patent/CA445970A/fr
Expired legal-status Critical Current

Links

CA445970A Systeme telephonique Expired CA445970A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA445970T

Publications (1)

Publication Number Publication Date
CA445970A true CA445970A (fr) 1948-01-06

Family

ID=35563636

Family Applications (1)

Application Number Title Priority Date Filing Date
CA445970A Expired CA445970A (fr) Systeme telephonique

Country Status (1)

Country Link
CA (1) CA445970A (fr)

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