BE368021A - - Google Patents
Info
- Publication number
- BE368021A BE368021A BE368021DA BE368021A BE 368021 A BE368021 A BE 368021A BE 368021D A BE368021D A BE 368021DA BE 368021 A BE368021 A BE 368021A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; 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
- H04R9/046—Construction
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)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL355776X | 1929-03-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE368021A true BE368021A (https=) |
Family
ID=19785213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE368021D BE368021A (https=) | 1929-03-02 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2020814A (https=) |
| BE (1) | BE368021A (https=) |
| FR (1) | FR690512A (https=) |
| GB (1) | GB355776A (https=) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2949115C3 (de) * | 1979-12-06 | 1982-04-22 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Dynamischer Wandler mit einer Schwingspule in einem mit einer magnetischen Flüssigkeit gefüllten Luftspalt und Verfahren zum Einfüllen und/oder gleichmäßigen Verteilen dieser Flüssigkeit |
-
0
- BE BE368021D patent/BE368021A/xx unknown
-
1930
- 1930-01-25 US US423316A patent/US2020814A/en not_active Expired - Lifetime
- 1930-02-24 GB GB6116/30A patent/GB355776A/en not_active Expired
- 1930-02-24 FR FR690512D patent/FR690512A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB355776A (en) | 1931-08-28 |
| US2020814A (en) | 1935-11-12 |
| FR690512A (fr) | 1930-09-23 |