BE358300A - - Google Patents
Info
- Publication number
- BE358300A BE358300A BE358300DA BE358300A BE 358300 A BE358300 A BE 358300A BE 358300D A BE358300D A BE 358300DA BE 358300 A BE358300 A BE 358300A
- 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
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
- H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only
- H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
- H04R1/2803—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means for loudspeaker transducers
Landscapes
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR668273T | 1928-04-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE358300A true BE358300A (xx) |
Family
ID=9014915
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE358300D BE358300A (xx) | 1928-04-28 |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE358300A (xx) |
| FR (1) | FR668273A (xx) |
| GB (1) | GB310490A (xx) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2298758B (en) * | 1995-03-09 | 1999-05-26 | Prima Dev Ltd | Loudspeaker systems and enclosures |
| FR2737724B1 (fr) * | 1995-08-09 | 1997-09-05 | Synthelabo | Derives de 1-[2-(2,3-dihydro-1h-inden-1-yl)ethyl]-4- (naphtalen-1-yl) piperazine, leur preparation et leur application en therapeutique |
-
0
- BE BE358300D patent/BE358300A/xx unknown
-
1928
- 1928-04-28 FR FR668273D patent/FR668273A/fr not_active Expired
- 1928-07-10 GB GB20058/28A patent/GB310490A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR668273A (fr) | 1929-10-30 |
| GB310490A (en) | 1929-07-04 |