CA424971A - Stethoscope acoustique - Google Patents

Stethoscope acoustique

Info

Publication number: CA424971A
Authority: CA; Canada
Prior art keywords: acoustic stethoscope; stethoscope; acoustic
Prior art date: 1945-01-09
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

CA424971A

Other languages

Inventor

Ferdinand Olson Harry

Original Assignee

Radio Corporation of America

Publication date

1945-01-09

1945-01-09 Application granted granted Critical

1945-01-09 Publication of CA424971A publication Critical patent/CA424971A/fr

Status Expired legal-status Critical Current

CA424971A Stethoscope acoustique Expired CA424971A (fr)

Application Number	Priority Date	Filing Date	Title
CA424971T

Publication Number	Publication Date
CA424971A true CA424971A (fr)	1945-01-09

Application Number	Title	Priority Date	Filing Date
CA424971A Expired CA424971A (fr)			Stethoscope acoustique

Country	Link
CA (1)	CA424971A (fr)

Publication	Publication Date	Title
CA424971A (fr)	1945-01-09	Stethoscope acoustique
CA431096A (fr)	1945-11-06	Appareil traducteur electroacoustique
CA426426A (fr)	1945-03-27	Dispositif acoustique
CA427102A (fr)	1945-04-24	Dispositif d'acoustique
CA431094A (fr)	1945-11-06	Dispositif d'acoustique
CA427122A (fr)	1945-05-01	Microphone
CA425328A (fr)	1945-01-30	Cornet acoustique
CA432019A (fr)	1945-12-18	Disque phonographique
CA431684A (fr)	1945-12-04	Transposeur piezoelectrique
AU128923B2 (en)	1945-11-28	Improvements in acoustic echo-sounding
CA424953A (fr)	1945-01-09	Diaphragme
CA426734A (fr)	1945-04-10	Dispositif de traduction des sons
CA428748A (fr)	1945-07-10	Dispositif acoustique a retard
AU130549B2 (en)	1946-01-02	Loudspeaker
CA426109A (fr)	1945-03-13	Dispositif a production de sons
CA426885A (fr)	1945-04-17	Traitement pour absorber les sons
CA427874A (fr)	1945-05-29	Scie a archet
CA430993A (fr)	1945-11-06	Presse d'etirage
AU126122B2 (en)	1947-12-04	Aryl-dicyandiamides
AU126547B2 (en)	1948-01-29	String-cutter
AU127627B2 (en)	1948-05-13	Mouth-organs
CA431912A (fr)	1945-12-18	Porte-livre
CA425909A (fr)	1945-03-06	Pelle chargeuse a tracteur
CA429339A (fr)	1945-08-07	Porte-bobine de fil
CA429734A (fr)	1945-08-28	Telegrade