CA546387A - Systemes de telephone - Google Patents

Systemes de telephone

Info

Publication number: CA546387A
Authority: CA; Canada
Prior art keywords: telephone systems; telephone; systems
Prior art date: 1957-09-17
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

CA546387A

Other languages

Inventor

H. Faulkner Alfred

Original Assignee

Northern Electric Co Ltd

Publication date

1957-09-17

1957-09-17 Application granted granted Critical

1957-09-17 Publication of CA546387A publication Critical patent/CA546387A/fr

Status Expired legal-status Critical Current

CA546387A Systemes de telephone Expired CA546387A (fr)

Application Number	Priority Date	Filing Date	Title
CA546387T

Publication Number	Publication Date
CA546387A true CA546387A (fr)	1957-09-17

Application Number	Title	Priority Date	Filing Date
CA546387A Expired CA546387A (fr)			Systemes de telephone

Country	Link
CA (1)	CA546387A (fr)

Publication	Publication Date	Title
CA538498A (fr)	1957-03-19	Systemes telephoniques
CA546624A (fr)	1957-09-24	Systemes de telephone
CA539700A (fr)	1957-04-16	Systemes telephoniques
CA547720A (fr)	1957-10-22	Dispositifs d'appel
CA535581A (fr)	1957-01-08	Systemes de telephone a intercommunication
CA537813A (fr)	1957-03-05	Systemes de telephone d'intercommunication
CA546386A (fr)	1957-09-17	Systeme de telephone electronique
CA548744A (fr)	1957-11-12	Systemes de telephone automatique
AU221000B2 (en)	1957-10-31	Improvements in telephone systems
AU219945B2 (en)	1957-12-05	Improvements in telephone systems
AU215819B2 (en)	1957-10-07	Improvements in telephone systems
AU216847B2 (en)	1957-11-07	Improvements in telephone systems
AU217337B2 (en)	1957-10-17	Improvements in telephone systems
AU214701B2 (en)	1957-10-03	Improvements in telephone systems
CA541688A (fr)	1957-05-28	Systemes telephoniques a commande commune
CA524631A (fr)	1956-05-01	Systemes de telephone
CA522332A (fr)	1956-03-06	Systemes de telephone
CA530739A (fr)	1956-09-25	Systemes telephoniques
CA533592A (fr)	1956-11-20	Systemes telephoniques
CA521394A (fr)	1956-01-31	Systemes de telephone
CA525662A (fr)	1956-05-29	Systemes telephoniques
CA521856A (fr)	1956-02-14	Systemes de telephone
CA524594A (fr)	1956-05-01	Systemes de telephone
CA546503A (fr)	1957-09-24	Systemes de telecommunication en deux sens
AU219986B2 (en)	1957-10-17	Improvements relating to telephone systems