BE349115A - - Google Patents
Info
- Publication number
- BE349115A BE349115A BE349115DA BE349115A BE 349115 A BE349115 A BE 349115A BE 349115D A BE349115D A BE 349115DA BE 349115 A BE349115 A BE 349115A
- 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
- H04R9/04—Construction, mounting, or centering of coil
- H04R9/045—Mounting
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
- Storage Of Web-Like Or Filamentary Materials (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL36431A NL27011C (it) | 1927-03-25 | 1927-03-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE349115A true BE349115A (it) |
Family
ID=32472173
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE349115D BE349115A (it) | 1927-03-25 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US2006847A (it) |
| BE (1) | BE349115A (it) |
| FR (1) | FR649790A (it) |
| GB (1) | GB292739A (it) |
| NL (1) | NL27011C (it) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2492255A (en) * | 1944-12-26 | 1949-12-27 | John O Angehrn | Sealed-coil type vibratory magnet loudspeaker |
| US4235302A (en) * | 1977-03-15 | 1980-11-25 | Kenkichi Tsukamoto | Loudspeaker |
| US4239090A (en) * | 1979-03-29 | 1980-12-16 | Dahlquist Jon G | High accuracy bass reproducer device |
| JPH09163492A (ja) * | 1995-12-06 | 1997-06-20 | Pioneer Electron Corp | スピーカ |
| IT1395441B1 (it) * | 2009-09-09 | 2012-09-21 | Ask Ind Societa Per Azioni | Trasduttore magneto-dinamico con sistema centrante |
-
0
- BE BE349115D patent/BE349115A/xx unknown
-
1927
- 1927-03-25 NL NL36431A patent/NL27011C/xx active
- 1927-05-05 GB GB12017/27A patent/GB292739A/en not_active Expired
-
1928
- 1928-02-23 FR FR649790D patent/FR649790A/fr not_active Expired
- 1928-03-06 US US259445A patent/US2006847A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| NL27011C (it) | 1932-06-15 |
| US2006847A (en) | 1935-07-02 |
| GB292739A (en) | 1928-06-28 |
| FR649790A (fr) | 1928-12-27 |