CA409235A - Appareil commutateur telephonique - Google Patents

Appareil commutateur telephonique

Info

Publication number: CA409235A
Authority: CA; Canada
Prior art keywords: switching apparatus; telephone switching; telephone; switching
Prior art date: 1942-12-08
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

Inventor

Ellis Ostline John

Original Assignee

Northern Electric Co Ltd

Publication date

1942-12-08

1942-12-08 Application granted granted Critical

1942-12-08 Publication of CA409235A publication Critical patent/CA409235A/fr

Status Expired legal-status Critical Current

CA409235A Appareil commutateur telephonique Expired CA409235A (fr)

Application Number	Priority Date	Filing Date	Title
CA409235T

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

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

Country	Link
CA (1)	CA409235A (fr)

Publication	Publication Date	Title
CA409235A (fr)	1942-12-08	Appareil commutateur telephonique
CA404209A (fr)	1942-04-21	Commutateur telephonique
CA403723A (fr)	1942-03-31	Appareil de commutation electrique
CA403768A (fr)	1942-03-31	Appareil commutateur electrique
CA408085A (fr)	1942-10-20	Appareil commutateur electrique
CA409003A (fr)	1942-12-01	Appareil commutateur electrique
CA411945A (fr)	1943-04-20	Appareil commutateur telephonique
CA411946A (fr)	1943-04-20	Appareil commutateur telephonique
CA413013A (fr)	1943-06-08	Appareil commutateur de telephone
CA413014A (fr)	1943-06-08	Appareil commutateur de telephone
CA404580A (fr)	1942-05-05	Monotelephone
CA403784A (fr)	1942-03-31	Tableau de distribution
CA409236A (fr)	1942-12-08	Systeme telephonique
CA403996A (fr)	1942-04-07	Systeme telephonique
CA403999A (fr)	1942-04-07	Systeme telephonique
CA405029A (fr)	1942-05-26	Systeme telephonique
CA405043A (fr)	1942-05-26	Systeme telephonique
CA405324A (fr)	1942-06-09	Systeme telephonique
CA405758A (fr)	1942-06-30	Systeme telephonique
CA405759A (fr)	1942-06-30	Systeme telephonique
CA405760A (fr)	1942-06-30	Systeme telephonique
CA406280A (fr)	1942-07-21	Reseau telephonique
CA406560A (fr)	1942-08-04	Reseau telephonique
CA406561A (fr)	1942-08-04	Reseau telephonique
CA403973A (fr)	1942-04-07	Systeme telephonique