BE496097A - - Google Patents
Info
- Publication number
- BE496097A BE496097A BE496097DA BE496097A BE 496097 A BE496097 A BE 496097A BE 496097D A BE496097D A BE 496097DA BE 496097 A BE496097 A BE 496097A
- Authority
- BE
- Belgium
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
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
- H04R9/025—Magnetic circuit
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/06—Loudspeakers
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US97234A US2534157A (en) | 1949-06-04 | 1949-06-04 | Sound reproducing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE496097A true BE496097A (US06811534-20041102-M00003.png) |
Family
ID=22262326
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE496097D BE496097A (US06811534-20041102-M00003.png) | 1949-06-04 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US2534157A (US06811534-20041102-M00003.png) |
| BE (1) | BE496097A (US06811534-20041102-M00003.png) |
| GB (1) | GB672467A (US06811534-20041102-M00003.png) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3125647A (en) * | 1964-03-17 | Frequency-o cycles sec | ||
| GB698695A (en) * | 1951-01-11 | 1953-10-21 | Lustraphone Ltd | Improvements in or relating to microphones |
| US3046362A (en) * | 1956-11-06 | 1962-07-24 | Stanley F White | Speaker |
| US3573396A (en) * | 1964-02-05 | 1971-04-06 | Electronic Res Ass | Loudspeaker having improved diaphragm |
| US3679844A (en) * | 1970-08-27 | 1972-07-25 | Alpha Products Inc | Moving coil loudspeaker using thin magnet |
| DE2236374C3 (de) * | 1972-07-25 | 1975-01-16 | Josef Wilhelm 8725 Arnstein Manger | Elektroakustisches Wandlersystem |
| US4306121A (en) * | 1979-04-12 | 1981-12-15 | Instrument Systems Corporation | Electro-acoustic transducer assembly |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2197649A (en) * | 1936-11-14 | 1940-04-16 | Cinaudagraph Corp | Loudspeaker and method of formation |
| GB549643A (en) * | 1941-05-27 | 1942-12-01 | Standard Telephones Cables Ltd | Improvements in or relating to telephone transmitters and receivers |
-
0
- BE BE496097D patent/BE496097A/xx unknown
-
1949
- 1949-06-04 US US97234A patent/US2534157A/en not_active Expired - Lifetime
-
1950
- 1950-06-02 GB GB13849/50A patent/GB672467A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB672467A (en) | 1952-05-21 |
| US2534157A (en) | 1950-12-12 |
