BE343797A - - Google Patents
Info
- Publication number
- BE343797A BE343797A BE343797DA BE343797A BE 343797 A BE343797 A BE 343797A BE 343797D A BE343797D A BE 343797DA BE 343797 A BE343797 A BE 343797A
- 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
- 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 |
|---|---|---|---|
| DE293414X | 1927-07-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE343797A true BE343797A (https=) |
Family
ID=6079132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE343797D BE343797A (https=) | 1927-07-06 |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE343797A (https=) |
| FR (1) | FR638392A (https=) |
| GB (1) | GB293414A (https=) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2863520A (en) * | 1955-03-11 | 1958-12-09 | Gen Dynamics Corp | Loudspeaker cone rim treatment |
| US9277324B2 (en) | 2013-12-19 | 2016-03-01 | Apple Inc. | Three part membrane speaker |
-
0
- BE BE343797D patent/BE343797A/xx unknown
-
1927
- 1927-07-28 FR FR638392D patent/FR638392A/fr not_active Expired
- 1927-12-02 GB GB32592/27A patent/GB293414A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR638392A (fr) | 1928-05-23 |
| GB293414A (en) | 1929-03-04 |