BE352536A - - Google Patents
Info
- Publication number
- BE352536A BE352536A BE352536DA BE352536A BE 352536 A BE352536 A BE 352536A BE 352536D A BE352536D A BE 352536DA BE 352536 A BE352536 A BE 352536A
- 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
-
- 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
- H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
- H04R7/12—Non-planar diaphragms or cones
- H04R7/14—Non-planar diaphragms or cones corrugated, pleated or ribbed
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
- Diaphragms And Bellows (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR655114T | 1927-10-18 | ||
| FR35370T | 1928-04-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE352536A true BE352536A (US07915450-20110329-C00059.png) |
Family
ID=26182663
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE352536D BE352536A (US07915450-20110329-C00059.png) | 1927-10-18 |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE352536A (US07915450-20110329-C00059.png) |
| CH (1) | CH133241A (US07915450-20110329-C00059.png) |
| FR (2) | FR655114A (US07915450-20110329-C00059.png) |
| GB (2) | GB309156A (US07915450-20110329-C00059.png) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4434203A (en) * | 1980-10-27 | 1984-02-28 | Setra Systems, Inc. | Diaphragm |
-
0
- BE BE352536D patent/BE352536A/xx unknown
-
1927
- 1927-10-18 FR FR655114D patent/FR655114A/fr not_active Expired
-
1928
- 1928-04-06 FR FR35370D patent/FR35370E/fr not_active Expired
- 1928-07-02 CH CH133241D patent/CH133241A/fr unknown
- 1928-07-09 GB GB19929/28A patent/GB309156A/en not_active Expired
- 1928-07-09 GB GB19854/28A patent/GB298977A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB298977A (en) | 1929-02-21 |
| GB309156A (en) | 1929-11-28 |
| CH133241A (fr) | 1929-05-31 |
| FR655114A (fr) | 1929-04-15 |
| FR35370E (fr) | 1930-03-08 |
