BE554110A - - Google Patents
Info
- Publication number
- BE554110A BE554110A BE554110DA BE554110A BE 554110 A BE554110 A BE 554110A BE 554110D A BE554110D A BE 554110DA BE 554110 A BE554110 A BE 554110A
- 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
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
- H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only
Landscapes
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Fluid-Damping Devices (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US572034A US2852088A (en) | 1956-03-16 | 1956-03-16 | Damping plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE554110A true BE554110A (forum.php) |
Family
ID=24286071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE554110D BE554110A (forum.php) | 1956-03-16 |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US2852088A (forum.php) |
| BE (1) | BE554110A (forum.php) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3053339A (en) * | 1959-09-07 | 1962-09-11 | Sony Corp | Pipe microphone |
| EP0162049A1 (en) * | 1983-01-28 | 1985-11-27 | Krister Amnéus | An arrangement in acoustic systems |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL78163C (forum.php) * | 1950-05-11 | |||
| US2672525A (en) * | 1950-06-16 | 1954-03-16 | Automatic Elect Lab | Sound translating device with resonating and damping chamber |
-
0
- BE BE554110D patent/BE554110A/xx unknown
-
1956
- 1956-03-16 US US572034A patent/US2852088A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US2852088A (en) | 1958-09-16 |