CA514655A - Microphones et granules de microphones - Google Patents

Microphones et granules de microphones

Info

Publication number: CA514655A
Authority: CA; Canada
Prior art keywords: microphones; granules; microphone; microphone granules
Prior art date: 1955-07-12
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

CA514655A

Other languages

English (en)

Inventor

O. Baker William

O. Grisdale Richard

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

AT&T Corp

Original Assignee

Western Electric Co Inc

Publication date

1955-07-12

1955-07-12 Application granted granted Critical

1955-07-12 Publication of CA514655A publication Critical patent/CA514655A/fr

Status Expired legal-status Critical Current

Links

239000008187 granular material Substances 0.000 title 1

CA514655A Microphones et granules de microphones Expired CA514655A (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
CA514655T

Publications (1)

Publication Number	Publication Date
CA514655A true CA514655A (fr)	1955-07-12

Family

ID=35665744

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA514655A Expired CA514655A (fr)			Microphones et granules de microphones

Country Status (1)

Country	Link
CA (1)	CA514655A (fr)

0
- CA CA514655A patent/CA514655A/fr not_active Expired

Similar Documents

Publication	Publication Date	Title
CA514655A (fr)	1955-07-12	Microphones et granules de microphones
CA517192A (fr)	1955-10-04	Pastilles et methodes de fabrication
AU202302B2 (en)	1955-10-13	Combined telephone and dictation system
CA516980A (fr)	1955-09-27	Appareil de monture pour haut-parleurs
CA517159A (fr)	1955-10-04	Introducteur de diaphragme
CA513617A (fr)	1955-06-14	Limiteur regle a basse frequence
CA519695A (fr)	1955-12-20	Microphone a differentiel de second ordre
AU821155A (en)	1955-10-13	Combined telephone and dictation system
CA545180A (fr)	1957-08-20	Microphones
CA510546A (fr)	1955-03-01	Streptomycylamines et leur production
CA589109A (fr)	1959-12-15	Haut-parleur
CA516435A (fr)	1955-09-13	Intensificateur de son
CA518030A (fr)	1955-11-01	Amplificateur passe-bande
CA491718A (fr)	1953-03-31	Microphones
AU209422B2 (en)	1955-09-29	Improvements in and relating to microphones
AU208376B2 (en)	1956-12-06	Electroacoustic delay-line
CA577737A (fr)	1959-06-16	Haut-parleur coplanaire
CA517228A (fr)	1955-10-04	Dispositifs transmetteurs de sons
CA510189A (fr)	1955-02-15	Dispositif translateur de sons et methode de fabrication
CA519733A (fr)	1955-12-20	Translateurs acoustiques du genre a granule
CA515337A (fr)	1955-08-02	Embouchure
CA510087A (fr)	1955-02-15	Tampon de casque telephonique
CA567402A (fr)	1958-12-16	Commande de dispositif de sonnerie
CA524070A (fr)	1956-04-17	Reproduction photoelectrique de sons
CA509292A (fr)	1955-01-18	Methodes et systemes de stabilisation de frequences