CA458747A - Systeme d'enregistrement pour telephone - Google Patents

Systeme d'enregistrement pour telephone

Info

Publication number: CA458747A
Authority: CA; Canada
Prior art keywords: recording system; telephone recording; telephone; recording
Prior art date: 1949-08-09
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

CA458747A

Other languages

Inventor

F. Ffolliott Charles

Original Assignee

Automatic Electric Laboratories Inc

Publication date

1949-08-09

1949-08-09 Application granted granted Critical

1949-08-09 Publication of CA458747A publication Critical patent/CA458747A/fr

Status Expired legal-status Critical Current

CA458747A Systeme d'enregistrement pour telephone Expired CA458747A (fr)

Application Number	Priority Date	Filing Date	Title
CA458747T

Publication Number	Publication Date
CA458747A true CA458747A (fr)	1949-08-09

Application Number	Title	Priority Date	Filing Date
CA458747A Expired CA458747A (fr)			Systeme d'enregistrement pour telephone

Country	Link
CA (1)	CA458747A (fr)

Publication	Publication Date	Title
CA458747A (fr)	1949-08-09	Systeme d'enregistrement pour telephone
CA459993A (fr)	1949-09-27	Systeme telephonique
CA458674A (fr)	1949-08-02	Systeme telephonique
CA453798A (fr)	1949-01-04	Systeme telephonique
CA454136A (fr)	1949-01-18	Systeme telephonique
CA454334A (fr)	1949-01-25	Systeme telephonique
CA455720A (fr)	1949-04-05	Systeme telephonique
CA457823A (fr)	1949-07-05	Systeme telephonique
CA461789A (fr)	1949-12-13	Systeme telephonique
CA456764A (fr)	1949-05-17	Systeme telephonique
CA459026A (fr)	1949-08-16	Systeme telephonique
CA460236A (fr)	1949-10-11	Systeme telephonique
CA459027A (fr)	1949-08-16	Systeme telephonique
CA457980A (fr)	1949-07-05	Systeme telephonique
CA461214A (fr)	1949-11-22	Dispositif d'enregistrement
CA456997A (fr)	1949-05-31	Accessoire pour base de monotelephone
CA460752A (fr)	1949-11-01	Systeme de telecommunication
CA456582A (fr)	1949-05-10	Manipulateur pour systeme de telecommunication
CA457550A (fr)	1949-06-21	Phonographe
AU148169B2 (en)	1949-11-10	Telephone set
CA455192A (fr)	1949-03-15	Horloge enregistreuse commandee par matricule
CA455024A (fr)	1949-03-08	Systeme de central telephonique
CA458092A (fr)	1949-07-12	Systeme d'inducteur equilibre unitaire
AU155381B2 (en)	1949-11-03	Improvement infrequency-converter system
CA457207A (fr)	1949-06-07	Systeme de telephone automatique