FR2189972A1 - - Google Patents
Info
- Publication number
- FR2189972A1 FR2189972A1 FR7322439A FR7322439A FR2189972A1 FR 2189972 A1 FR2189972 A1 FR 2189972A1 FR 7322439 A FR7322439 A FR 7322439A FR 7322439 A FR7322439 A FR 7322439A FR 2189972 A1 FR2189972 A1 FR 2189972A1
- Authority
- FR
- France
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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
- H04R7/22—Clamping rim of diaphragm or cone against seating
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2931172 | 1972-06-22 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2189972A1 true FR2189972A1 (US08124630-20120228-C00102.png) | 1974-01-25 |
| FR2189972B3 FR2189972B3 (US08124630-20120228-C00102.png) | 1976-06-18 |
Family
ID=10289538
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7322439A Expired FR2189972B3 (US08124630-20120228-C00102.png) | 1972-06-22 | 1973-06-20 |
Country Status (6)
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2483156A1 (fr) * | 1980-05-23 | 1981-11-27 | Int Standard Electric Corp | Transducteur electrodynamique et methode de fabrication de ce transducteur en deux parties |
| US4630358A (en) * | 1983-08-16 | 1986-12-23 | Standard Telephones And Cables Public Limited Company | Method of making an electrostatic transducer of the moving coil type |
-
1972
- 1972-06-22 GB GB2931172A patent/GB1348229A/en not_active Expired
-
1973
- 1973-04-03 ZA ZA732258A patent/ZA732258B/xx unknown
- 1973-06-19 IT IT25543/73A patent/IT989267B/it active
- 1973-06-20 FR FR7322439A patent/FR2189972B3/fr not_active Expired
- 1973-06-21 DK DK343473A patent/DK146000C/da not_active IP Right Cessation
- 1973-06-22 ES ES416186A patent/ES416186A1/es not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2483156A1 (fr) * | 1980-05-23 | 1981-11-27 | Int Standard Electric Corp | Transducteur electrodynamique et methode de fabrication de ce transducteur en deux parties |
| EP0040948A1 (en) * | 1980-05-23 | 1981-12-02 | International Standard Electric Corporation | Method of making an electro dynamic transducer |
| US4630358A (en) * | 1983-08-16 | 1986-12-23 | Standard Telephones And Cables Public Limited Company | Method of making an electrostatic transducer of the moving coil type |
Also Published As
| Publication number | Publication date |
|---|---|
| AU5696773A (en) | 1974-12-19 |
| ZA732258B (en) | 1974-01-30 |
| ES416186A1 (es) | 1976-03-01 |
| GB1348229A (en) | 1974-03-13 |
| DK146000B (da) | 1983-05-09 |
| DK146000C (da) | 1983-10-10 |
| FR2189972B3 (US08124630-20120228-C00102.png) | 1976-06-18 |
| IT989267B (it) | 1975-05-20 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |