CA562753A - Systemes telephoniques - Google Patents

Systemes telephoniques

Info

Publication number: CA562753A
Authority: CA; Canada
Prior art keywords: telephone systems; telephone; systems
Prior art date: 1958-09-02
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

CA562753A

Other languages

Inventor

E. Lomax Clarence

Original Assignee

Northern Electric Co Ltd

Publication date

1958-09-02

1958-09-02 Application granted granted Critical

1958-09-02 Publication of CA562753A publication Critical patent/CA562753A/fr

Status Expired legal-status Critical Current

CA562753A Systemes telephoniques Expired CA562753A (fr)

Application Number	Priority Date	Filing Date	Title
CA562753T

Publication Number	Publication Date
CA562753A true CA562753A (fr)	1958-09-02

Application Number	Title	Priority Date	Filing Date
CA562753A Expired CA562753A (fr)			Systemes telephoniques

Country	Link
CA (1)	CA562753A (fr)

Publication	Publication Date	Title
CA568218A (fr)	1958-12-30	Systemes de telephone
CA566172A (fr)	1958-11-18	Systemes de telephone
CA565686A (fr)	1958-11-04	Systemes de telephone
CA567399A (fr)	1958-12-16	Systeme de telephone
CA555972A (fr)	1958-04-15	Systemes de telecommunication
CA567448A (fr)	1958-12-16	Systemes de telephone automatique
CA557106A (fr)	1958-05-06	Systemes de telephone automatique
AU226577B2 (en)	1959-04-09	Improvements in telephone systems
AU226826B2 (en)	1959-04-23	Improvements in telephone systems
AU226404B2 (en)	1959-04-23	Improvements in telephone systems
CA587164A (fr)	1959-11-17	Systemes de telephone
CA574965A (fr)	1959-04-28	Systemes de telephone
CA581156A (fr)	1959-08-11	Systeme de telephone
CA588334A (fr)	1959-12-08	Systemes de telephone
CA572855A (fr)	1959-03-24	Systemes de telephone
CA568131A (fr)	1958-12-30	Systemes de telephone a postes groupes
CA562242A (fr)	1958-08-26	Systeme de telephone automatique
CA539700A (fr)	1957-04-16	Systemes telephoniques
CA538498A (fr)	1957-03-19	Systemes telephoniques
CA546624A (fr)	1957-09-24	Systemes de telephone
CA546387A (fr)	1957-09-17	Systemes de telephone
CA563277A (fr)	1958-09-16	Systeme de transmission de signaux sonores de telephone
CA567796A (fr)	1958-12-23	Systeme de communication
IE22787L (en)	1959-04-10	Telephone systems
AU4260858A (en)	1959-04-23	Improvements in telephone systems