BE474567A - - Google Patents
Info
- Publication number
- BE474567A BE474567A BE474567A BE474567A BE474567A BE 474567 A BE474567 A BE 474567A BE 474567 A BE474567 A BE 474567A BE 474567 A BE474567 A BE 474567A BE 474567 A BE474567 A BE 474567A
- Authority
- BE
- Belgium
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)
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 |
|---|---|
| BE474567A true BE474567A (cs) | 1947-08-30 |
Family
ID=10484202
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE474567A BE474567A (cs) | 1943-10-29 | 1947-07-17 | |
| BE474930A BE474930A (cs) | 1943-10-29 | 1947-07-30 |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE474930A BE474930A (cs) | 1943-10-29 | 1947-07-30 |
Country Status (4)
| Country | Link |
|---|---|
| US (2) | US2363686A (cs) |
| BE (2) | BE474567A (cs) |
| FR (2) | FR1018260A (cs) |
| GB (2) | GB568128A (cs) |
Families Citing this family (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3314499A (en) * | 1967-04-18 | Instrument for quantitating sound intensities | ||
| US2632521A (en) * | 1953-03-24 | Frequency selector | ||
| 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 (cs) * | 1952-03-20 | |||
| BE534484A (cs) * | 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 |
| US10667782B2 (en) | 2015-05-15 | 2020-06-02 | 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 |
-
1942
- 1942-04-01 US US43713942 patent/US2363686A/en not_active Expired - Lifetime
-
1943
- 1943-04-01 GB GB523943A patent/GB568128A/en not_active Expired
- 1943-10-29 US US50821543 patent/US2389868A/en not_active Expired - Lifetime
-
1944
- 1944-10-03 GB GB1889444A patent/GB596787A/en not_active Expired
-
1947
- 1947-07-17 BE BE474567A patent/BE474567A/fr unknown
- 1947-07-29 FR FR1018260D patent/FR1018260A/fr not_active Expired
- 1947-07-30 FR FR989229D patent/FR989229A/fr not_active Expired
- 1947-07-30 BE BE474930A patent/BE474930A/fr unknown
Also Published As
| Publication number | Publication date |
|---|---|
| US2363686A (en) | 1944-11-28 |
| GB596787A (en) | 1948-01-21 |
| FR989229A (cs) | 1951-09-06 |
| FR1018260A (cs) | 1953-01-05 |
| GB568128A (en) | 1945-03-20 |
| BE474930A (cs) | 1947-08-30 |
| US2389868A (en) | 1945-11-27 |