CA494877A - Systemes de telephone automatique - Google Patents

Systemes de telephone automatique

Info

Publication number: CA494877A
Authority: CA; Canada
Prior art keywords: telephone systems; automatic telephone; automatic; systems; telephone
Prior art date: 1953-07-28
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

CA494877A

Other languages

Inventor

F. Ffolliott Charles

Original Assignee

Northern Electric Co Ltd

Publication date

1953-07-28

1953-07-28 Application granted granted Critical

1953-07-28 Publication of CA494877A publication Critical patent/CA494877A/fr

Status Expired legal-status Critical Current

CA494877A Systemes de telephone automatique Expired CA494877A (fr)

Application Number	Priority Date	Filing Date	Title
CA494877T

Publication Number	Publication Date
CA494877A true CA494877A (fr)	1953-07-28

Application Number	Title	Priority Date	Filing Date
CA494877A Expired CA494877A (fr)			Systemes de telephone automatique

Country	Link
CA (1)	CA494877A (fr)

Publication	Publication Date	Title
CA490689A (fr)	1953-02-17	Systemes automatiques de telephone
CA493919A (fr)	1953-06-23	Systemes automatiques de telephone
CA494877A (fr)	1953-07-28	Systemes de telephone automatique
CA496610A (fr)	1953-10-06	Systemes de telephone automatique
CA497640A (fr)	1953-11-10	Systemes de telephones automatiques
CA495231A (fr)	1953-08-11	Systeme de telephone automatique
CA491104A (fr)	1953-03-10	Systemes telephoniques
CA493123A (fr)	1953-05-26	Systemes telephoniques
CA493483A (fr)	1953-06-09	Systemes telephoniques
CA493485A (fr)	1953-06-09	Systemes telephoniques
CA493486A (fr)	1953-06-09	Systemes telephoniques
CA493889A (fr)	1953-06-23	Systemes telephoniques
CA494014A (fr)	1953-06-30	Systemes telephoniques
CA495874A (fr)	1953-09-08	Systemes telephoniques
CA496513A (fr)	1953-09-29	Systemes telephoniques
CA496514A (fr)	1953-09-29	Systemes telephoniques
CA496858A (fr)	1953-10-13	Systemes telephoniques
CA497078A (fr)	1953-10-20	Systemes telephoniques
CA497326A (fr)	1953-11-03	Systemes telephoniques
CA497641A (fr)	1953-11-10	Systemes telephoniques
CA497642A (fr)	1953-11-10	Systemes telephoniques
CA498036A (fr)	1953-12-01	Systemes telephoniques
CA498037A (fr)	1953-12-01	Systemes telephoniques
CA498762A (fr)	1953-12-29	Systemes telephoniques
CA498859A (fr)	1953-12-29	Systemes telephoniques