CA422885A - Systeme telephonique - Google Patents

Systeme telephonique

Info

Publication number
CA422885A
CA422885A CA422885A CA422885DA CA422885A CA 422885 A CA422885 A CA 422885A CA 422885 A CA422885 A CA 422885A CA 422885D A CA422885D A CA 422885DA CA 422885 A CA422885 A CA 422885A
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
CA422885A
Other languages
English (en)
Inventor
Wicks John
Original Assignee
Automatic Electric Laboratories Inc
Associated Telephone and Telegraph Co
Publication date
Application granted granted Critical
Publication of CA422885A publication Critical patent/CA422885A/fr
Expired legal-status Critical Current

Links

CA422885A Systeme telephonique Expired CA422885A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA422885T

Publications (1)

Publication Number Publication Date
CA422885A true CA422885A (fr) 1944-09-26

Family

ID=35533885

Family Applications (1)

Application Number Title Priority Date Filing Date
CA422885A Expired CA422885A (fr) Systeme telephonique

Country Status (1)

Country Link
CA (1) CA422885A (fr)

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