FR934924A - Perfectionnements aux dispositifs d'aide acoustique - Google Patents
Perfectionnements aux dispositifs d'aide acoustiqueInfo
- Publication number
- FR934924A FR934924A FR934924DA FR934924A FR 934924 A FR934924 A FR 934924A FR 934924D A FR934924D A FR 934924DA FR 934924 A FR934924 A FR 934924A
- Authority
- FR
- France
- Prior art keywords
- assistance devices
- acoustic
- acoustic assistance
- devices
- assistance
- 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
-
- 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
- H04R25/65—Housing parts, e.g. shells, tips or moulds, or their manufacture
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US636459A US2500301A (en) | 1945-12-21 | 1945-12-21 | Molded chassis for hearing aid apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
FR934924A true FR934924A (fr) | 1948-06-04 |
Family
ID=24552000
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR934924D Expired FR934924A (fr) | 1945-12-21 | 1946-10-17 | Perfectionnements aux dispositifs d'aide acoustique |
Country Status (5)
Country | Link |
---|---|
US (1) | US2500301A (fr) |
BE (1) | BE468809A (fr) |
FR (1) | FR934924A (fr) |
GB (1) | GB633553A (fr) |
LU (1) | LU28180A1 (fr) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2761018A (en) * | 1949-03-02 | 1956-08-28 | Paravox Inc | Hearing aid having a molded chassis |
US2699471A (en) * | 1949-11-25 | 1955-01-11 | Sonotone Corp | Amplifier chassis structure and casing for variable electronic hearing aids |
US2628270A (en) * | 1950-04-29 | 1953-02-10 | Rca Corp | Electrical plug-in assembly |
US2755048A (en) * | 1951-06-28 | 1956-07-17 | Bendix Aviat Corp | Mount structure for electric components |
DE952359C (de) * | 1953-02-13 | 1956-11-15 | Sued Atlas Werke G M B H | Gehaeuse aus Weichgummi fuer Schallgeraete, insbesondere Kristallmikrophone |
US2789160A (en) * | 1953-10-29 | 1957-04-16 | Sonotone Corp | Wearable hearing aid with a common casing for amplifier and batteries |
US2883523A (en) * | 1955-09-07 | 1959-04-21 | Francis P Meserow | Wireless communication system |
US3119903A (en) * | 1955-12-08 | 1964-01-28 | Otarion Inc | Combination eyeglass frame and hearing aid unit |
US4325455A (en) * | 1978-05-12 | 1982-04-20 | Tannoy Products Limited | Loudspeaker grille |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1630028A (en) * | 1925-01-15 | 1927-05-24 | De Elbert A Reynolds | Ear phone |
US1805362A (en) * | 1929-10-09 | 1931-05-12 | Hugh J Ellis | Microphone and microphone mounting |
US1811638A (en) * | 1929-12-09 | 1931-06-23 | Sonotone Corp | Earphone transmitter |
FR834981A (fr) * | 1937-03-13 | 1938-12-08 | Aeg | Filtre d'onde électrique |
US2268619A (en) * | 1938-01-08 | 1942-01-06 | Joseph A Beasley | Radio receiving apparatus |
US2176671A (en) * | 1938-11-09 | 1939-10-17 | Aurex Corp | A and b battery combination |
US2308550A (en) * | 1940-07-18 | 1943-01-19 | Sonotone Corp | Amplifying hearing aid |
US2336828A (en) * | 1941-02-11 | 1943-12-14 | Dictograph Products Co Inc | Portable microphone and amplifier |
US2333028A (en) * | 1941-05-16 | 1943-10-26 | Mears Radio Hearing Device Cor | Battery pack |
US2306701A (en) * | 1941-06-20 | 1942-12-29 | Bell Telephone Labor Inc | Combined telephone and telegraph cord and attendants' circuits |
US2327320A (en) * | 1941-11-12 | 1943-08-17 | Sonotone Corp | Amplifying hearing aid |
US2327321A (en) * | 1941-11-12 | 1943-08-17 | Sonotone Corp | Hearing aid amplifier |
US2444302A (en) * | 1943-03-16 | 1948-06-29 | E A Myers & Sons | Hearing aid |
-
1945
- 1945-12-21 US US636459A patent/US2500301A/en not_active Expired - Lifetime
-
1946
- 1946-09-27 GB GB28887/46A patent/GB633553A/en not_active Expired
- 1946-10-17 FR FR934924D patent/FR934924A/fr not_active Expired
- 1946-10-25 LU LU28180D patent/LU28180A1/fr unknown
- 1946-10-28 BE BE468809A patent/BE468809A/fr unknown
Also Published As
Publication number | Publication date |
---|---|
US2500301A (en) | 1950-03-14 |
BE468809A (fr) | 1946-11-30 |
LU28180A1 (fr) | 1946-12-27 |
GB633553A (en) | 1949-12-19 |
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