FR336260A - Appareil acoustique - Google Patents
Appareil acoustiqueInfo
- Publication number
- FR336260A FR336260A FR336260A FR336260DA FR336260A FR 336260 A FR336260 A FR 336260A FR 336260 A FR336260 A FR 336260A FR 336260D A FR336260D A FR 336260DA FR 336260 A FR336260 A FR 336260A
- Authority
- FR
- France
- Prior art keywords
- acoustic device
- acoustic
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
- H04R25/04—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception comprising pocket amplifiers
-
- 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)
- Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Otolaryngology (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Biomedical Technology (AREA)
- Psychology (AREA)
- Neurosurgery (AREA)
- Biophysics (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Animal Behavior & Ethology (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Details Of Audible-Bandwidth Transducers (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT17833T | 1903-10-17 | ||
GB190323077T | 1903-10-24 | ||
FR336260T | 1903-10-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR336260A true FR336260A (fr) | 1904-03-04 |
Family
ID=62566549
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR336260A Expired FR336260A (fr) | 1903-10-17 | 1903-10-26 | Appareil acoustique |
Country Status (3)
Country | Link |
---|---|
AT (1) | AT17833B (fr) |
FR (1) | FR336260A (fr) |
GB (1) | GB190323077A (fr) |
-
1903
- 1903-10-17 AT AT17833D patent/AT17833B/de active
- 1903-10-24 GB GB190323077D patent/GB190323077A/en not_active Expired
- 1903-10-26 FR FR336260A patent/FR336260A/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB190323077A (en) | 1903-12-17 |
AT17833B (fr) | 1904-10-10 |
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