CA409236A - Systeme telephonique - Google Patents

Systeme telephonique

Info

Publication number
CA409236A
CA409236A CA409236A CA409236DA CA409236A CA 409236 A CA409236 A CA 409236A CA 409236 A CA409236 A CA 409236A CA 409236D A CA409236D A CA 409236DA CA 409236 A CA409236 A CA 409236A
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
CA409236A
Other languages
English (en)
Inventor
Henry Voss John
Original Assignee
Northern Electric Co Ltd
Publication date
Application granted granted Critical
Publication of CA409236A publication Critical patent/CA409236A/fr
Expired legal-status Critical Current

Links

CA409236A Systeme telephonique Expired CA409236A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA409236T

Publications (1)

Publication Number Publication Date
CA409236A true CA409236A (fr) 1942-12-08

Family

ID=35420537

Family Applications (1)

Application Number Title Priority Date Filing Date
CA409236A Expired CA409236A (fr) Systeme telephonique

Country Status (1)

Country Link
CA (1) CA409236A (fr)

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