CA521240A - Systemes de manoeuvre d'appels interurbains - Google Patents

Systemes de manoeuvre d'appels interurbains

Info

Publication number: CA521240A
Authority: CA; Canada
Prior art keywords: switching systems; toll switching; toll; systems; switching
Prior art date: 1956-01-31
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

CA521240A

Other languages

Inventor

E. Ostline John

Original Assignee

Automatic Electric Laboratories Inc

Publication date

1956-01-31

1956-01-31 Application granted granted Critical

1956-01-31 Publication of CA521240A publication Critical patent/CA521240A/fr

Status Expired legal-status Critical Current

CA521240A Systemes de manoeuvre d'appels interurbains Expired CA521240A (fr)

Application Number	Priority Date	Filing Date	Title
CA521240T

Publication Number	Publication Date
CA521240A true CA521240A (fr)	1956-01-31

Application Number	Title	Priority Date	Filing Date
CA521240A Expired CA521240A (fr)			Systemes de manoeuvre d'appels interurbains

Country	Link
CA (1)	CA521240A (fr)

Publication	Publication Date	Title
CA608330A (en)	1960-11-08	Switching devices
CA580092A (fr)	1959-07-21	Systemes de commutateur
CA521240A (fr)	1956-01-31	Systemes de manoeuvre d'appels interurbains
CA534874A (fr)	1956-12-25	Systeme de manoeuvre
CA518928A (fr)	1955-11-29	Systemes de commutation d'appel interurbain
CA530442A (fr)	1956-09-18	Systemes de telecommunication
CA532978A (fr)	1956-11-13	Systemes de telecommunication
CA523374A (fr)	1956-04-03	Agencement de commutation
CA522080A (fr)	1956-02-21	Systemes de courant a pulsations
CA522332A (fr)	1956-03-06	Systemes de telephone
CA533592A (fr)	1956-11-20	Systemes telephoniques
CA521856A (fr)	1956-02-14	Systemes de telephone
CA524631A (fr)	1956-05-01	Systemes de telephone
CA524594A (fr)	1956-05-01	Systemes de telephone
CA525662A (fr)	1956-05-29	Systemes telephoniques
CA530739A (fr)	1956-09-25	Systemes telephoniques
CA521394A (fr)	1956-01-31	Systemes de telephone
CA519764A (fr)	1955-12-20	Systeme de manoeuvre d'appels interurbains
CA525830A (fr)	1956-06-05	Systemes de manoeuvre de central de telephone
CA532734A (fr)	1956-11-06	Dispositif d'interrupteur electromagnetique
CA523607A (fr)	1956-04-10	Interrupteurs horaires
CA531988A (fr)	1956-10-23	Systeme de manoeuvre electrique
CA523913A (fr)	1956-04-17	Interrupteurs
CA524786A (fr)	1956-05-08	Interrupteurs
CA522884A (fr)	1956-03-20	Systeme de rupteurs en cascade