GB189900320A - An Improved Apparatus to Assist the Sense of Hearing. - Google Patents
An Improved Apparatus to Assist the Sense of Hearing.Info
- Publication number
- GB189900320A GB189900320A GB189900320DA GB189900320A GB 189900320 A GB189900320 A GB 189900320A GB 189900320D A GB189900320D A GB 189900320DA GB 189900320 A GB189900320 A GB 189900320A
- Authority
- GB
- United Kingdom
- Prior art keywords
- hearing
- assist
- sense
- improved apparatus
- improved
- 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.)
- Expired
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F11/00—Methods or devices for treatment of the ears or hearing sense; Non-electric hearing aids; Methods or devices for enabling ear patients to achieve auditory perception through physiological senses other than hearing sense; Protective devices for the ears, carried on the body or in the hand
- A61F11/30—Non-electric hearing aids, e.g. ear trumpets, sound amplifiers or ear-shells
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Psychology (AREA)
- Acoustics & Sound (AREA)
- Biophysics (AREA)
- Otolaryngology (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB189900320T | 1899-01-06 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB189900320A true GB189900320A (en) | 1899-03-11 |
Family
ID=35246352
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB189900320D Expired GB189900320A (en) | 1899-01-06 | 1899-01-06 | An Improved Apparatus to Assist the Sense of Hearing. |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB189900320A (en) |
-
1899
- 1899-01-06 GB GB189900320D patent/GB189900320A/en not_active Expired
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB189900320A (en) | An Improved Apparatus to Assist the Sense of Hearing. | |
GB189916783A (en) | An Improved Massaging Device. | |
GB189903491A (en) | An Improved Fly-catching Apparatus. | |
CH18671A (en) | Deaf lambourde | |
CA73874A (en) | Amalgamator | |
GB189916922A (en) | An Improved Electric Spark-fuse. | |
GB189917306A (en) | An Improved Calculating Apparatus. | |
GB189914540A (en) | An Improved Picture-suspending Device. | |
CA67290A (en) | Water rising apparatus | |
CA71230A (en) | Sound increasing apparatus | |
GB189924811A (en) | Improved Schrapnel-projectile. | |
GB189914572A (en) | Improved System of Electro-dynamic Propulsion. | |
GB190018865A (en) | Improvements in Apparatus for the Production of Electrical Oscillations. | |
CA64177A (en) | Leggings | |
GB189914521A (en) | Bicycle-bell. | |
GB189914258A (en) | An Improved Luggage-carrier for Cycles. | |
CA68181A (en) | Match | |
CA68064A (en) | Match | |
GB189903247A (en) | An Improved Explosive. | |
GB189908679A (en) | An Improved Explosive. | |
GB189908680A (en) | An Improved Explosive. | |
CA73056A (en) | Roll | |
CA75184A (en) | Amalgamator | |
CA63213A (en) | Amalgamator | |
CA65451A (en) | Amalgamator |