BE377277A - - Google Patents
Info
- Publication number
- BE377277A BE377277A BE377277DA BE377277A BE 377277 A BE377277 A BE 377277A BE 377277D A BE377277D A BE 377277DA BE 377277 A BE377277 A BE 377277A
- 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
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Elimination Of Static Electricity (AREA)
- Circuit For Audible Band Transducer (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE539582T | 1930-06-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE377277A true BE377277A (cg-RX-API-DMAC7.html) |
Family
ID=34122373
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE377277D BE377277A (cg-RX-API-DMAC7.html) | 1930-06-18 |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE377277A (cg-RX-API-DMAC7.html) |
| DE (1) | DE539582C (cg-RX-API-DMAC7.html) |
| FR (2) | FR718092A (cg-RX-API-DMAC7.html) |
| GB (1) | GB372590A (cg-RX-API-DMAC7.html) |
-
0
- BE BE377277D patent/BE377277A/xx unknown
-
1930
- 1930-06-18 DE DE1930539582D patent/DE539582C/de not_active Expired
-
1931
- 1931-06-03 FR FR718092D patent/FR718092A/fr not_active Expired
- 1931-06-15 GB GB17324/31A patent/GB372590A/en not_active Expired
-
1932
- 1932-04-09 FR FR41827D patent/FR41827E/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE539582C (de) | 1931-11-28 |
| FR41827E (fr) | 1933-04-20 |
| FR718092A (fr) | 1932-01-19 |
| GB372590A (en) | 1932-05-12 |