FR2250230B1 - - Google Patents
Info
- Publication number
- FR2250230B1 FR2250230B1 FR7339082A FR7339082A FR2250230B1 FR 2250230 B1 FR2250230 B1 FR 2250230B1 FR 7339082 A FR7339082 A FR 7339082A FR 7339082 A FR7339082 A FR 7339082A FR 2250230 B1 FR2250230 B1 FR 2250230B1
- 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.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/36—Devices for manipulating acoustic surface waves
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Optical Integrated Circuits (AREA)
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7339082A FR2250230B1 (US07816562-20101019-C00012.png) | 1973-11-02 | 1973-11-02 | |
| DE19742451926 DE2451926A1 (de) | 1973-11-02 | 1974-10-31 | Stigmatisches brechungssystem |
| GB4745374A GB1492947A (en) | 1973-11-02 | 1974-11-01 | Refractive system for elastic surface waves |
| US05/813,650 US4193473A (en) | 1973-11-02 | 1977-07-07 | Refractive stigmatic system for elastic surface waves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7339082A FR2250230B1 (US07816562-20101019-C00012.png) | 1973-11-02 | 1973-11-02 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2250230A1 FR2250230A1 (US07816562-20101019-C00012.png) | 1975-05-30 |
| FR2250230B1 true FR2250230B1 (US07816562-20101019-C00012.png) | 1976-07-23 |
Family
ID=9127243
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7339082A Expired FR2250230B1 (US07816562-20101019-C00012.png) | 1973-11-02 | 1973-11-02 |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE2451926A1 (US07816562-20101019-C00012.png) |
| FR (1) | FR2250230B1 (US07816562-20101019-C00012.png) |
| GB (1) | GB1492947A (US07816562-20101019-C00012.png) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2372380A1 (fr) * | 1976-11-30 | 1978-06-23 | Barbier Benard & Turenne | Appareil d'eclairage sans ombres portees |
| FR2500177A1 (fr) * | 1981-02-13 | 1982-08-20 | Thomson Csf | Dispositif dioptrique a ondes magnetostatiques |
| DE3731309A1 (de) * | 1987-09-17 | 1989-03-30 | Siemens Ag | Oberflaechenwellenanordnung mit konversionsstruktur zur vermeidung unerwuenschter reflektierter wellen |
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1973
- 1973-11-02 FR FR7339082A patent/FR2250230B1/fr not_active Expired
-
1974
- 1974-10-31 DE DE19742451926 patent/DE2451926A1/de not_active Withdrawn
- 1974-11-01 GB GB4745374A patent/GB1492947A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB1492947A (en) | 1977-11-23 |
| FR2250230A1 (US07816562-20101019-C00012.png) | 1975-05-30 |
| DE2451926A1 (de) | 1975-05-28 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |