GB793778A - - Google Patents
Info
- Publication number
- GB793778A GB793778A GB793778DA GB793778A GB 793778 A GB793778 A GB 793778A GB 793778D A GB793778D A GB 793778DA GB 793778 A GB793778 A GB 793778A
- Authority
- GB
- United Kingdom
- Prior art keywords
- container
- amplifier
- july
- wired
- tubular
- Prior art date
- 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.)
- Active
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)
- Heart & Thoracic Surgery (AREA)
- Acoustics & Sound (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Physics & Mathematics (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Toys (AREA)
Abstract
793,778. Stethoscopes. FOTHERGILL, L., TRIER, P. B., CAPEWELL, W. B., and LEWIS, A. D. July 8, 1955 [July 14, 1954], No. 20570/54. Class 40 (4). In a stethoscope of conventional shape the portion to be placed on the patient's body comprises a microphone 19 wired to an amplifier in the tubular container 15 which is in turn wired to two receivers 13 in the tubular arms 10 leading to the earpieces 12. The amplifier may be a transistor amplifier powered by dry cells enclosed in container 16. Control knobs 17, 18 are fitted to the ends of container 15.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB793778A true GB793778A (en) |
Family
ID=1752139
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB793778D Active GB793778A (en) |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB793778A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2204759A (en) * | 1987-03-02 | 1988-11-16 | Frederick Albert Carey | Audio communicator system |
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0
- GB GB793778D patent/GB793778A/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2204759A (en) * | 1987-03-02 | 1988-11-16 | Frederick Albert Carey | Audio communicator system |
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