FR2399760B1 - - Google Patents
Info
- Publication number
- FR2399760B1 FR2399760B1 FR7723983A FR7723983A FR2399760B1 FR 2399760 B1 FR2399760 B1 FR 2399760B1 FR 7723983 A FR7723983 A FR 7723983A FR 7723983 A FR7723983 A FR 7723983A FR 2399760 B1 FR2399760 B1 FR 2399760B1
- 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
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
- H03H9/46—Filters
- H03H9/48—Coupling means therefor
- H03H9/52—Electric coupling means
Landscapes
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7723983A FR2399760A1 (fr) | 1977-08-04 | 1977-08-04 | Perfectionnement aux filtres electromecaniques |
| US05/920,115 US4255727A (en) | 1977-08-04 | 1978-06-28 | Electromechanical filters |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7723983A FR2399760A1 (fr) | 1977-08-04 | 1977-08-04 | Perfectionnement aux filtres electromecaniques |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2399760A1 FR2399760A1 (fr) | 1979-03-02 |
| FR2399760B1 true FR2399760B1 (US07413550-20080819-C00001.png) | 1980-02-01 |
Family
ID=9194213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7723983A Granted FR2399760A1 (fr) | 1977-08-04 | 1977-08-04 | Perfectionnement aux filtres electromecaniques |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US4255727A (US07413550-20080819-C00001.png) |
| FR (1) | FR2399760A1 (US07413550-20080819-C00001.png) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1458469A (fr) * | 1965-09-17 | 1966-03-04 | Siemens Ag | Filtre de bande électromécanique |
| US3858127A (en) * | 1973-12-10 | 1974-12-31 | Rockwell International Corp | Stable and compact low frequency filter |
| JPS50142141A (US07413550-20080819-C00001.png) * | 1974-05-07 | 1975-11-15 | ||
| FR2320004A1 (fr) * | 1975-07-31 | 1977-02-25 | Lignes Telegraph Telephon | Filtre mecanique passe-bande pour hautes frequences |
-
1977
- 1977-08-04 FR FR7723983A patent/FR2399760A1/fr active Granted
-
1978
- 1978-06-28 US US05/920,115 patent/US4255727A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| FR2399760A1 (fr) | 1979-03-02 |
| US4255727A (en) | 1981-03-10 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| CL | Concession to grant licences | ||
| ST | Notification of lapse |