FR2239811A1 - - Google Patents
Info
- Publication number
- FR2239811A1 FR2239811A1 FR7425348A FR7425348A FR2239811A1 FR 2239811 A1 FR2239811 A1 FR 2239811A1 FR 7425348 A FR7425348 A FR 7425348A FR 7425348 A FR7425348 A FR 7425348A FR 2239811 A1 FR2239811 A1 FR 2239811A1
- 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
- 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
- H03H9/50—Mechanical coupling means
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 |
---|---|---|---|
IT2748273A IT992811B (en) | 1973-08-03 | 1973-08-03 | ELECTROMECHANICAL FILTER WITH FLEXIBLE VIBRATING RESONATORS |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2239811A1 true FR2239811A1 (en) | 1975-02-28 |
FR2239811B1 FR2239811B1 (en) | 1978-01-20 |
Family
ID=11221735
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7425348A Expired FR2239811B1 (en) | 1973-08-03 | 1974-07-22 |
Country Status (8)
Country | Link |
---|---|
BR (1) | BR7406380D0 (en) |
DE (1) | DE2433874C3 (en) |
ES (1) | ES428885A1 (en) |
FR (1) | FR2239811B1 (en) |
GB (1) | GB1482112A (en) |
IT (1) | IT992811B (en) |
RO (1) | RO80736A (en) |
YU (1) | YU36321B (en) |
-
1973
- 1973-08-03 IT IT2748273A patent/IT992811B/en active
-
1974
- 1974-07-15 DE DE19742433874 patent/DE2433874C3/en not_active Expired
- 1974-07-15 GB GB3121674A patent/GB1482112A/en not_active Expired
- 1974-07-22 FR FR7425348A patent/FR2239811B1/fr not_active Expired
- 1974-07-24 YU YU210174A patent/YU36321B/en unknown
- 1974-08-02 BR BR638074A patent/BR7406380D0/en unknown
- 1974-08-02 ES ES428885A patent/ES428885A1/en not_active Expired
- 1974-08-02 RO RO7479654A patent/RO80736A/en unknown
Also Published As
Publication number | Publication date |
---|---|
FR2239811B1 (en) | 1978-01-20 |
YU36321B (en) | 1982-06-18 |
RO80736B (en) | 1983-05-30 |
BR7406380D0 (en) | 1975-05-20 |
ES428885A1 (en) | 1976-09-01 |
DE2433874C3 (en) | 1978-06-15 |
YU210174A (en) | 1981-08-31 |
DE2433874B2 (en) | 1977-11-03 |
IT992811B (en) | 1975-09-30 |
DE2433874A1 (en) | 1975-02-13 |
GB1482112A (en) | 1977-08-03 |
RO80736A (en) | 1983-06-01 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |