BE377274A - - Google Patents
Info
- Publication number
- BE377274A BE377274A BE377274DA BE377274A BE 377274 A BE377274 A BE 377274A BE 377274D A BE377274D A BE 377274DA BE 377274 A BE377274 A BE 377274A
- 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
- H04R19/00—Electrostatic transducers
- H04R19/02—Loudspeakers
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE711807X | 1930-02-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE377274A true BE377274A (en:Method) |
Family
ID=6621176
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE377274D BE377274A (en:Method) | 1930-02-24 |
Country Status (2)
| Country | Link |
|---|---|
| BE (1) | BE377274A (en:Method) |
| FR (1) | FR711807A (en:Method) |
-
0
- BE BE377274D patent/BE377274A/xx unknown
-
1931
- 1931-02-23 FR FR711807D patent/FR711807A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR711807A (fr) | 1931-09-18 |