BE379048A - - Google Patents
Info
- Publication number
- BE379048A BE379048A BE379048DA BE379048A BE 379048 A BE379048 A BE 379048A BE 379048D A BE379048D A BE 379048DA BE 379048 A BE379048 A BE 379048A
- 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
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL387309X | 1930-05-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE379048A true BE379048A (en]) |
Family
ID=19785725
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE379048D BE379048A (en]) | 1930-05-10 |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE379048A (en]) |
| FR (1) | FR715482A (en]) |
| GB (1) | GB387309A (en]) |
-
0
- BE BE379048D patent/BE379048A/xx unknown
-
1931
- 1931-04-15 FR FR715482D patent/FR715482A/fr not_active Expired
- 1931-04-27 GB GB12421/31A patent/GB387309A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR715482A (fr) | 1931-12-03 |
| GB387309A (en) | 1933-02-02 |