CA532449A - Systemes de telephone automatique - Google Patents

Systemes de telephone automatique

Info

Publication number: CA532449A
Authority: CA; Canada
Prior art keywords: telephone systems; automatic telephone; automatic; systems; telephone
Prior art date: 1956-10-30
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

CA532449A

Other languages

Inventor

E. Lomax Clarence

Original Assignee

Northern Electric Co Ltd

Publication date

1956-10-30

1956-10-30 Application granted granted Critical

1956-10-30 Publication of CA532449A publication Critical patent/CA532449A/fr

Status Expired legal-status Critical Current

CA532449A Systemes de telephone automatique Expired CA532449A (fr)

Application Number	Priority Date	Filing Date	Title
CA532449T

Publication Number	Publication Date
CA532449A true CA532449A (fr)	1956-10-30

Application Number	Title	Priority Date	Filing Date
CA532449A Expired CA532449A (fr)			Systemes de telephone automatique

Country	Link
CA (1)	CA532449A (fr)

Publication	Publication Date	Title
CA532449A (fr)	1956-10-30	Systemes de telephone automatique
CA524054A (fr)	1956-04-17	Systemes de telephone automatique
CA521518A (fr)	1956-02-07	Systeme de telephone automatique
CA523499A (fr)	1956-04-03	Systeme de telephone automatique
CA525903A (fr)	1956-06-05	Systeme de telephone automatique
CA526324A (fr)	1956-06-12	Systemes de telephone automatique a relais
CA521394A (fr)	1956-01-31	Systemes de telephone
CA521856A (fr)	1956-02-14	Systemes de telephone
CA522332A (fr)	1956-03-06	Systemes de telephone
CA524594A (fr)	1956-05-01	Systemes de telephone
CA524631A (fr)	1956-05-01	Systemes de telephone
CA525662A (fr)	1956-05-29	Systemes telephoniques
CA530739A (fr)	1956-09-25	Systemes telephoniques
CA533592A (fr)	1956-11-20	Systemes telephoniques
CA548744A (fr)	1957-11-12	Systemes de telephone automatique
CA526554A (fr)	1956-06-19	Systemes de telephone automatique du type echelonne
CA530442A (fr)	1956-09-18	Systemes de telecommunication
CA532978A (fr)	1956-11-13	Systemes de telecommunication
CA530322A (fr)	1956-09-11	Systemes automatiques d'echange de telephone
CA530323A (fr)	1956-09-11	Systemes automatiques d'echange de telephone
CA543973A (fr)	1957-07-23	Systeme de telephone automatique
CA521241A (fr)	1956-01-31	Systeme de telephone automatique a relais
CA520819A (fr)	1956-01-17	Systeme de commande a potentiel automatique
CA533984A (fr)	1956-12-04	Systeme de telephone
CA527080A (fr)	1956-07-03	Systeme de reponse pour telephone