BE474930A - - Google Patents

Info

Publication number
BE474930A
BE474930A BE474930A BE474930A BE474930A BE 474930 A BE474930 A BE 474930A BE 474930 A BE474930 A BE 474930A BE 474930 A BE474930 A BE 474930A BE 474930 A BE474930 A BE 474930A
Authority
BE
Belgium
Application number
BE474930A
Other languages
French (fr)
Inventor
Harry F. Olson
Original Assignee
Harry F. Olson
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Harry F. Olson filed Critical Harry F. Olson
Publication of BE474930A publication Critical patent/BE474930A/fr

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B7/00—Instruments for auscultation
    • A61B7/02—Stethoscopes

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Headphones And Earphones (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)
BE474930A 1943-10-29 1947-07-30 BE474930A (xx)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US50821543 US2389868A (en) 1943-10-29 1943-10-29 Acoustic Stethoscope

Publications (1)

Publication Number Publication Date
BE474930A true BE474930A (xx) 1947-08-30

Family

ID=10484202

Family Applications (2)

Application Number Title Priority Date Filing Date
BE474567A BE474567A (xx) 1943-10-29 1947-07-17
BE474930A BE474930A (xx) 1943-10-29 1947-07-30

Family Applications Before (1)

Application Number Title Priority Date Filing Date
BE474567A BE474567A (xx) 1943-10-29 1947-07-17

Country Status (4)

Country Link
US (2) US2363686A (xx)
BE (2) BE474567A (xx)
FR (2) FR1018260A (xx)
GB (2) GB568128A (xx)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2632521A (en) * 1953-03-24 Frequency selector
US3314499A (en) * 1967-04-18 Instrument for quantitating sound intensities
US2573438A (en) * 1946-09-18 1951-10-30 Rca Corp Electroacoustic transducer set
GB732388A (en) * 1951-12-12 1955-06-22 Dictaphone Corp Twin unit stethoscope headphones
BE518558A (xx) * 1952-03-20
FR1120278A (xx) * 1954-12-28
DE1026480B (de) * 1955-01-24 1958-03-20 Dr Emmanuel Roy Bier Atemkanuele mit Atemgeraeuschverstaerker
US3294195A (en) * 1965-01-25 1966-12-27 Telex Corp Compressional wave signaling apparatus
US3493075A (en) * 1967-12-26 1970-02-03 Us Navy Single tubing stethoscope
US3690404A (en) * 1971-07-30 1972-09-12 Bio Data Inc Selective frequency stethoscope structure
US4270627A (en) * 1979-07-02 1981-06-02 Hill Raymond R Stethoscope with probe sound pick-up and resonant cavity amplification
US4246776A (en) * 1979-09-25 1981-01-27 Cornell Thompson Leak scope for detecting leaks in plumbing equipment
US4387784A (en) * 1981-10-06 1983-06-14 Hill Raymond R Stethoscope with improved resonant cavity amplification
US4763753A (en) * 1984-07-05 1988-08-16 Etymotic Research, Inc. Insert earphones for audiometry
US4633971A (en) * 1985-11-06 1987-01-06 Minnesota Mining And Manufacturing Company Stethoscope with high frequency filter
US5492129A (en) * 1993-12-03 1996-02-20 Greenberger; Hal Noise-reducing stethoscope
US5530212A (en) * 1995-05-12 1996-06-25 Baffoni; Frank A. Multiple phase stethoscope
US6119806A (en) * 1997-06-24 2000-09-19 Baffoni; Frank A. Multiple phase acoustic systems
FR2823660A1 (fr) * 2001-04-18 2002-10-25 Pneumopartners Dispositif d'aide a l'analyse de bruits adventices
US9404829B1 (en) * 2013-10-02 2016-08-02 Andrew Tien Stethescope based leak detection apparatus with interchangeable heads
KR101637830B1 (ko) * 2015-04-30 2016-07-07 서울시립대학교 산학협력단 헬름홀츠 공명을 이용한 청진기, 그 제어방법 및 그 제조방법
WO2016186849A1 (en) 2015-05-15 2016-11-24 3M Innovative Properties Company Stethoscope
KR101697424B1 (ko) * 2015-06-02 2017-01-17 서울시립대학교 산학협력단 헬름홀츠 공명을 이용한 청진기와 연결되는 휴대단말 시스템, 그 제어방법 및 그 제조방법
USD814631S1 (en) 2015-09-21 2018-04-03 3M Innovative Properties Company Stethoscope with one-piece tubing, chest piece and diaphragm-rim
US20220061796A1 (en) * 2020-09-01 2022-03-03 Wichita State University Disposable stethoscope

Also Published As

Publication number Publication date
GB568128A (en) 1945-03-20
BE474567A (xx) 1947-08-30
GB596787A (en) 1948-01-21
FR989229A (xx) 1951-09-06
US2363686A (en) 1944-11-28
US2389868A (en) 1945-11-27
FR1018260A (xx) 1953-01-05

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