CA512085A - Systemes de telephone automatique a relais - Google Patents

Systemes de telephone automatique a relais

Info

Publication number: CA512085A
Authority: CA; Canada
Prior art keywords: telephone systems; automatic telephone; relay automatic; relay; systems
Prior art date: 1955-04-19
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

CA512085A

Other languages

Inventor

H. Voss John

W. Jones Roy

Original Assignee

Northern Electric Co Ltd

Publication date

1955-04-19

1955-04-19 Application granted granted Critical

1955-04-19 Publication of CA512085A publication Critical patent/CA512085A/fr

Status Expired legal-status Critical Current

CA512085A Systemes de telephone automatique a relais Expired CA512085A (fr)

Application Number	Priority Date	Filing Date	Title
CA512085T

Publication Number	Publication Date
CA512085A true CA512085A (fr)	1955-04-19

Application Number	Title	Priority Date	Filing Date
CA512085A Expired CA512085A (fr)			Systemes de telephone automatique a relais

Country	Link
CA (1)	CA512085A (fr)

Publication	Publication Date	Title
CA512085A (fr)	1955-04-19	Systemes de telephone automatique a relais
CA518930A (fr)	1955-11-29	Systeme de telephone automatique a relais
CA514095A (fr)	1955-06-28	Systeme de telephone automatique interurbain tous relais
CA513766A (fr)	1955-06-14	Systemes de telephone automatique
CA514583A (fr)	1955-07-12	Systemes de telephone automatique
CA516975A (fr)	1955-09-27	Systemes de telephone automatique
CA519763A (fr)	1955-12-20	Systemes de telephone automatique
CA509545A (fr)	1955-01-25	Systeme de telephone automatique
CA526324A (fr)	1956-06-12	Systemes de telephone automatique a relais
CA521241A (fr)	1956-01-31	Systeme de telephone automatique a relais
CA512081A (fr)	1955-04-19	Systemes de central automatique de telephone
AU202560B2 (en)	1955-10-13	Improvements in automatic telephone systems
AU212106B2 (en)	1956-06-14	Improvements relating to automatic telephone systems
CA512082A (fr)	1955-04-19	Systeme de central automatique de telephone
CA512312A (fr)	1955-04-26	Systemes telephoniques
CA519014A (fr)	1955-11-29	Systemes telephoniques
CA510190A (fr)	1955-02-15	Systemes telephoniques
CA510665A (fr)	1955-03-08	Systemes telephoniques
CA511747A (fr)	1955-04-12	Systemes telephoniques
CA512083A (fr)	1955-04-19	Systemes telephoniques
CA512309A (fr)	1955-04-26	Systemes telephoniques
CA512310A (fr)	1955-04-26	Systemes telephoniques
CA512311A (fr)	1955-04-26	Systemes telephoniques
AU821255A (en)	1955-10-13	Improvements in automatic telephone systems
CA518929A (fr)	1955-11-29	Systemes telephoniques utilisant un relais pair-impair