CA519764A - Systeme de manoeuvre d'appels interurbains - Google Patents

Systeme de manoeuvre d'appels interurbains

Info

Publication number: CA519764A
Authority: CA; Canada
Prior art keywords: switching system; toll switching; toll; switching
Prior art date: 1955-12-20
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

CA519764A

Other languages

Inventor

W. Balzer Harvey

Original Assignee

Northern Electric Co Ltd

Publication date

1955-12-20

1955-12-20 Application granted granted Critical

1955-12-20 Publication of CA519764A publication Critical patent/CA519764A/fr

Status Expired legal-status Critical Current

CA519764A Systeme de manoeuvre d'appels interurbains Expired CA519764A (fr)

Application Number	Priority Date	Filing Date	Title
CA519764T

Publication Number	Publication Date
CA519764A true CA519764A (fr)	1955-12-20

Application Number	Title	Priority Date	Filing Date
CA519764A Expired CA519764A (fr)			Systeme de manoeuvre d'appels interurbains

Country	Link
CA (1)	CA519764A (fr)

Publication	Publication Date	Title
CA519764A (fr)	1955-12-20	Systeme de manoeuvre d'appels interurbains
CA516876A (fr)	1955-09-27	Interrupteurs horaires
CA555801A (fr)	1958-04-08	Relais
CA518928A (fr)	1955-11-29	Systemes de commutation d'appel interurbain
CA516354A (fr)	1955-09-06	Panneau
CA519922A (fr)	1955-12-27	Interrupteur
CA509711A (fr)	1955-02-01	Systemes de manoeuvre
CA500825A (fr)	1954-03-23	Systeme de manoeuvre
CA521240A (fr)	1956-01-31	Systemes de manoeuvre d'appels interurbains
CA513303A (fr)	1955-05-31	Sectionneurs-commutateurs
CA511008A (fr)	1955-03-15	Dispositifs de manoeuvre
CA516355A (fr)	1955-09-06	Panneau
CA513820A (fr)	1955-06-14	Systeme recepteur de radiotelephone
CA512084A (fr)	1955-04-19	Systemes telephoniques de commutation d'appels entre bureaux
CA518961A (fr)	1955-11-29	Systeme de comptage
CA494844A (fr)	1953-07-28	Systeme de manoeuvre
CA518429A (fr)	1955-11-15	Appareil de manoeuvre
CA512512A (fr)	1955-05-03	Interrupteur
AU211308B2 (en)	1956-09-06	Signalling system
AU211198B2 (en)	1956-01-05	Improvements in telecommunication systems
CA499023A (fr)	1954-01-05	Systemes de manoeuvre
CA518537A (fr)	1955-11-15	Systeme de commande de trafic
CA511828A (fr)	1955-04-12	Dispositif de porte-appareil
CA516367A (fr)	1955-09-06	Dispositif de classement de porte-objets
CA511098A (fr)	1955-03-22	Systeme de communication