CA409235A - Appareil commutateur telephonique - Google Patents

Appareil commutateur telephonique

Info

Publication number
CA409235A
CA409235A CA409235A CA409235DA CA409235A CA 409235 A CA409235 A CA 409235A CA 409235 A CA409235 A CA 409235A CA 409235D A CA409235D A CA 409235DA CA 409235 A CA409235 A CA 409235A
Authority
CA
Canada
Prior art keywords
switching apparatus
telephone switching
telephone
switching
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
CA409235A
Other languages
English (en)
Inventor
Ellis Ostline John
Original Assignee
Northern Electric Co Ltd
Publication date
Application granted granted Critical
Publication of CA409235A publication Critical patent/CA409235A/fr
Expired legal-status Critical Current

Links

CA409235A Appareil commutateur telephonique Expired CA409235A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA409235T

Publications (1)

Publication Number Publication Date
CA409235A true CA409235A (fr) 1942-12-08

Family

ID=35420536

Family Applications (1)

Application Number Title Priority Date Filing Date
CA409235A Expired CA409235A (fr) Appareil commutateur telephonique

Country Status (1)

Country Link
CA (1) CA409235A (fr)

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