BE389706A - - Google Patents
Info
- Publication number
- BE389706A BE389706A BE389706DA BE389706A BE 389706 A BE389706 A BE 389706A BE 389706D A BE389706D A BE 389706DA BE 389706 A BE389706 A BE 389706A
- 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
- H04R7/00—Diaphragms for electromechanical transducers; Cones
- H04R7/16—Mounting or tensioning of diaphragms or cones
- H04R7/18—Mounting or tensioning of diaphragms or cones at the periphery
- H04R7/20—Securing diaphragm or cone resiliently to support by flexible material, springs, cords, or strands
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL383921X | 1931-07-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE389706A true BE389706A (OSRAM) |
Family
ID=19785677
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE389706D BE389706A (OSRAM) | 1931-07-14 |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE389706A (OSRAM) |
| FR (1) | FR739832A (OSRAM) |
| GB (1) | GB383921A (OSRAM) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2439666A (en) * | 1944-01-31 | 1948-04-13 | Rca Corp | Loudspeaker diaphragm support |
-
0
- BE BE389706D patent/BE389706A/xx unknown
-
1932
- 1932-07-07 GB GB19250/32A patent/GB383921A/en not_active Expired
- 1932-07-08 FR FR739832D patent/FR739832A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB383921A (en) | 1932-11-24 |
| FR739832A (fr) | 1933-01-17 |