CA502236A - Systemes telephoniques - Google Patents

Systemes telephoniques

Info

Publication number: CA502236A
Authority: CA; Canada
Prior art keywords: telephone systems; telephone; systems
Prior art date: 1954-05-11
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

CA502236A

Other languages

Inventor

Frank Stehlik Rudolph

Original Assignee

Automatic Electric Laboratories Inc

Publication date

1954-05-11

1954-05-11 Application granted granted Critical

1954-05-11 Publication of CA502236A publication Critical patent/CA502236A/fr

Status Expired legal-status Critical Current

CA502236A Systemes telephoniques Expired CA502236A (fr)

Application Number	Priority Date	Filing Date	Title
CA502236T

Publication Number	Publication Date
CA502236A true CA502236A (fr)	1954-05-11

Application Number	Title	Priority Date	Filing Date
CA502236A Expired CA502236A (fr)			Systemes telephoniques

Country	Link
CA (1)	CA502236A (fr)

Publication	Publication Date	Title
CA507617A (fr)	1954-11-23	Systemes telephoniques
CA499356A (fr)	1954-01-19	Systemes telephoniques
CA501321A (fr)	1954-04-06	Systemes telephoniques
CA502238A (fr)	1954-05-11	Systemes telephoniques
CA502239A (fr)	1954-05-11	Systemes telephoniques
CA506411A (fr)	1954-10-12	Systemes telephoniques
CA502236A (fr)	1954-05-11	Systemes telephoniques
CA507200A (fr)	1954-11-09	Systemes de telecommunication
CA504867A (fr)	1954-08-03	Systeme selectif d'appel
CA501908A (fr)	1954-04-27	Systeme de recepteur telephonique
CA507871A (fr)	1954-12-07	Systeme de telecommunication
CA500363A (fr)	1954-03-02	Systemes de telephone mobile
CA500705A (fr)	1954-03-16	Systemes telephoniques a radio
CA500362A (fr)	1954-03-02	Systemes de telephone automatique
CA503173A (fr)	1954-05-25	Systemes de telephone automatique
CA505485A (fr)	1954-08-31	Systemes de telephones automatiques
CA500638A (fr)	1954-03-16	Systemes telephoniques automatiques
AU203647B2 (en)	1955-02-03	Improvements in telephone systems
AU204127B2 (en)	1955-05-26	Improvements in telephone systems
AU205275B2 (en)		Improvements in telephone systems
AU209351B2 (en)	1955-06-30	Improvements relating to telephone systems
CA505876A (fr)	1954-09-14	Systeme de signalisation telephonique
CA505804A (fr)	1954-09-14	Systeme de signalisation telephonique
CA499833A (fr)	1954-02-09	Systemes radiotelephoniques
CA511747A (fr)	1955-04-12	Systemes telephoniques