FR2275068B1 - - Google Patents
Info
- Publication number
- FR2275068B1 FR2275068B1 FR7511444A FR7511444A FR2275068B1 FR 2275068 B1 FR2275068 B1 FR 2275068B1 FR 7511444 A FR7511444 A FR 7511444A FR 7511444 A FR7511444 A FR 7511444A FR 2275068 B1 FR2275068 B1 FR 2275068B1
- 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
- H03H9/54—Filters comprising resonators of piezoelectric or electrostrictive material
- H03H9/542—Filters comprising resonators of piezoelectric or electrostrictive material including passive elements
Landscapes
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NLAANVRAGE7405011,A NL174791C (en) | 1974-04-11 | 1974-04-11 | PIEZO ELECTRIC FILTER WITH A VERY NARROW BAND. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2275068A1 FR2275068A1 (en) | 1976-01-09 |
| FR2275068B1 true FR2275068B1 (en) | 1977-04-15 |
Family
ID=19821162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7511444A Granted FR2275068A1 (en) | 1974-04-11 | 1975-04-11 | FILTER CHAIN |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JPS5830767B2 (en) |
| DE (1) | DE2514403C2 (en) |
| FR (1) | FR2275068A1 (en) |
| GB (1) | GB1499774A (en) |
| NL (1) | NL174791C (en) |
| SE (1) | SE408513B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52101337U (en) * | 1976-01-28 | 1977-08-01 | ||
| DE3872217D1 (en) * | 1987-08-12 | 1992-07-23 | Avl Verbrennungskraft Messtech | DEVICE FOR INPUTING THE FUEL INTO THE COMBUSTION CHAMBER OF AN INTERNAL COMBUSTION ENGINE. |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3585537A (en) * | 1969-02-10 | 1971-06-15 | Bell Telephone Labor Inc | Electric wave filters |
| US3716808A (en) * | 1971-05-20 | 1973-02-13 | Motorola Inc | Bandpass filter including monolithic crystal elements with resonating portions selected for symmetrical response |
| FR2186175A5 (en) * | 1972-05-24 | 1974-01-04 | Thomson Csf |
-
1974
- 1974-04-11 NL NLAANVRAGE7405011,A patent/NL174791C/en not_active IP Right Cessation
-
1975
- 1975-04-02 DE DE2514403A patent/DE2514403C2/en not_active Expired
- 1975-04-02 GB GB13547/75A patent/GB1499774A/en not_active Expired
- 1975-04-09 JP JP50042385A patent/JPS5830767B2/en not_active Expired
- 1975-04-10 SE SE7504134A patent/SE408513B/en unknown
- 1975-04-11 FR FR7511444A patent/FR2275068A1/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| DE2514403C2 (en) | 1984-12-20 |
| GB1499774A (en) | 1978-02-01 |
| DE2514403A1 (en) | 1976-03-04 |
| NL174791B (en) | 1984-03-01 |
| NL174791C (en) | 1984-08-01 |
| JPS5830767B2 (en) | 1983-07-01 |
| SE408513B (en) | 1979-06-11 |
| JPS50138754A (en) | 1975-11-05 |
| NL7405011A (en) | 1975-10-14 |
| FR2275068A1 (en) | 1976-01-09 |
| SE7504134L (en) | 1975-10-13 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |