LU65191A1 - - Google Patents
Info
- Publication number
- LU65191A1 LU65191A1 LU65191DA LU65191A1 LU 65191 A1 LU65191 A1 LU 65191A1 LU 65191D A LU65191D A LU 65191DA LU 65191 A1 LU65191 A1 LU 65191A1
- Authority
- LU
- Luxembourg
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
- H04R17/00—Piezoelectric transducers; Electrostrictive transducers
-
- 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
- H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
- Piezo-Electric Transducers For Audible Bands (AREA)
- Transducers For Ultrasonic Waves (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19712119426 DE2119426C3 (de) | 1971-04-21 | 1971-04-21 | Membran für piezoelektrische Wandler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| LU65191A1 true LU65191A1 (de) | 1972-07-13 |
Family
ID=5805415
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| LU65191D LU65191A1 (de) | 1971-04-21 | 1972-04-19 |
Country Status (8)
| Country | Link |
|---|---|
| AT (1) | AT312073B (de) |
| BE (1) | BE782496A (de) |
| CH (1) | CH537686A (de) |
| DE (1) | DE2119426C3 (de) |
| FR (1) | FR2133939A1 (de) |
| IT (1) | IT955160B (de) |
| LU (1) | LU65191A1 (de) |
| NL (1) | NL7204475A (de) |
-
1971
- 1971-04-21 DE DE19712119426 patent/DE2119426C3/de not_active Expired
-
1972
- 1972-03-29 CH CH472572A patent/CH537686A/de not_active IP Right Cessation
- 1972-04-04 NL NL7204475A patent/NL7204475A/xx unknown
- 1972-04-13 AT AT323072A patent/AT312073B/de active
- 1972-04-18 IT IT2325472A patent/IT955160B/it active
- 1972-04-19 LU LU65191D patent/LU65191A1/xx unknown
- 1972-04-20 FR FR7213954A patent/FR2133939A1/fr not_active Withdrawn
- 1972-04-21 BE BE782496A patent/BE782496A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| FR2133939A1 (en) | 1972-12-01 |
| DE2119426C3 (de) | 1974-08-08 |
| IT955160B (it) | 1973-09-29 |
| NL7204475A (de) | 1972-10-24 |
| AT312073B (de) | 1973-12-10 |
| DE2119426B2 (de) | 1974-01-17 |
| DE2119426A1 (de) | 1972-10-26 |
| BE782496A (fr) | 1972-10-23 |
| CH537686A (de) | 1973-05-31 |