CA521242A - Instruments telephoniques a haut-parleurs - Google Patents

Instruments telephoniques a haut-parleurs

Info

Publication number: CA521242A
Authority: CA; Canada
Prior art keywords: telephone instruments; loudspeaking telephone; loudspeaking; instruments; telephone
Prior art date: 1956-01-31
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

CA521242A

Other languages

Inventor

M. Giannini Gabriel

Original Assignee

Automatic Electric Laboratories Inc

Publication date

1956-01-31

1956-01-31 Application granted granted Critical

1956-01-31 Publication of CA521242A publication Critical patent/CA521242A/fr

Status Expired legal-status Critical Current

CA521242A Instruments telephoniques a haut-parleurs Expired CA521242A (fr)

Application Number	Priority Date	Filing Date	Title
CA521242T

Publication Number	Publication Date
CA521242A true CA521242A (fr)	1956-01-31

Application Number	Title	Priority Date	Filing Date
CA521242A Expired CA521242A (fr)			Instruments telephoniques a haut-parleurs

Country	Link
CA (1)	CA521242A (fr)

Publication	Publication Date	Title
CA525363A (fr)	1956-05-22	Postes de telephone
CA533198A (fr)	1956-11-13	Cables de telecommunication
CA537823A (fr)	1957-03-05	Appareils de telephone
CA529366A (fr)	1956-08-21	Calendrier de telephone
CA502243A (fr)	1954-05-11	Instruments de telephone
CA505833A (fr)	1954-09-14	Agencements telephoniques a hauts-parleurs
CA523810A (fr)	1956-04-10	Appareil de telephone
CA533984A (fr)	1956-12-04	Systeme de telephone
AU207720B2 (en)	1955-07-21	Field telephone handset
AU208200B2 (en)	1956-03-29	Telephone desk set
CA527080A (fr)	1956-07-03	Systeme de reponse pour telephone
CA504359A (fr)	1954-07-13	Sonnerie telephonique
CA524594A (fr)	1956-05-01	Systemes de telephone
CA522332A (fr)	1956-03-06	Systemes de telephone
CA521394A (fr)	1956-01-31	Systemes de telephone
CA533592A (fr)	1956-11-20	Systemes telephoniques
CA524631A (fr)	1956-05-01	Systemes de telephone
CA530739A (fr)	1956-09-25	Systemes telephoniques
CA525662A (fr)	1956-05-29	Systemes telephoniques
CA521856A (fr)	1956-02-14	Systemes de telephone
AU217636B2 (en)	1957-06-20	Improvements in or relating to telephone subscribers instruments
AU214251B2 (en)	1956-07-12	Improvements relating to electromagnetic telephone instruments
AU223127B2 (en)	1958-06-05	Improvements relating to telephone instruments
AU224441B2 (en)	1959-05-15	Improvements relating to telephone instruments
CA529583A (fr)	1956-08-28	Circuit de poste payant de telephone