BE813241A - MECHANICAL FILTER CONTAINING AT LEAST FOUR RESONATORS - Google Patents
MECHANICAL FILTER CONTAINING AT LEAST FOUR RESONATORSInfo
- Publication number
- BE813241A BE813241A BE142799A BE142799A BE813241A BE 813241 A BE813241 A BE 813241A BE 142799 A BE142799 A BE 142799A BE 142799 A BE142799 A BE 142799A BE 813241 A BE813241 A BE 813241A
- Authority
- BE
- Belgium
- Prior art keywords
- resonators
- mechanical filter
- filter containing
- mechanical
- filter
- Prior art date
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)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19732316646 DE2316646C2 (en) | 1973-04-03 | 1973-04-03 | Mechanical filter with at least four resonators |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE813241A true BE813241A (en) | 1974-07-31 |
Family
ID=5876879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE142799A BE813241A (en) | 1973-04-03 | 1974-04-03 | MECHANICAL FILTER CONTAINING AT LEAST FOUR RESONATORS |
Country Status (12)
| Country | Link |
|---|---|
| JP (1) | JPS49131353A (en) |
| AR (1) | AR204243A1 (en) |
| AT (1) | AT336085B (en) |
| AU (1) | AU459860B2 (en) |
| BE (1) | BE813241A (en) |
| BR (1) | BR7402608D0 (en) |
| DE (1) | DE2316646C2 (en) |
| FR (1) | FR2224936B1 (en) |
| GB (1) | GB1469277A (en) |
| IT (1) | IT1004436B (en) |
| NL (1) | NL7404541A (en) |
| YU (1) | YU36840B (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1902091C3 (en) * | 1969-01-16 | 1975-07-03 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Arrangement for keying out of band signals into the transmission path of a carrier-frequency telephone transmission device |
-
1973
- 1973-04-03 DE DE19732316646 patent/DE2316646C2/en not_active Expired
-
1974
- 1974-01-01 AR AR25297274A patent/AR204243A1/en active
- 1974-03-19 GB GB1206074A patent/GB1469277A/en not_active Expired
- 1974-03-21 FR FR7409677A patent/FR2224936B1/fr not_active Expired
- 1974-03-29 IT IT4985774A patent/IT1004436B/en active
- 1974-04-01 AT AT270574A patent/AT336085B/en not_active IP Right Cessation
- 1974-04-02 BR BR260874A patent/BR7402608D0/en unknown
- 1974-04-02 JP JP3729274A patent/JPS49131353A/ja active Pending
- 1974-04-02 AU AU67438/74A patent/AU459860B2/en not_active Expired
- 1974-04-03 NL NL7404541A patent/NL7404541A/xx unknown
- 1974-04-03 BE BE142799A patent/BE813241A/en not_active IP Right Cessation
- 1974-04-03 YU YU92274A patent/YU36840B/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE2316646A1 (en) | 1974-10-17 |
| YU92274A (en) | 1982-06-18 |
| AT336085B (en) | 1977-04-12 |
| FR2224936A1 (en) | 1974-10-31 |
| DE2316646C2 (en) | 1984-09-13 |
| FR2224936B1 (en) | 1976-12-17 |
| IT1004436B (en) | 1976-07-10 |
| NL7404541A (en) | 1974-10-07 |
| ATA270574A (en) | 1976-08-15 |
| YU36840B (en) | 1984-08-31 |
| JPS49131353A (en) | 1974-12-17 |
| GB1469277A (en) | 1977-04-06 |
| AU459860B2 (en) | 1975-04-10 |
| AR204243A1 (en) | 1975-12-10 |
| BR7402608D0 (en) | 1974-11-19 |
| AU6743874A (en) | 1975-04-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| RE | Patent lapsed |
Owner name: SIEMENS A.G. Effective date: 19850403 |