BE463000A - - Google Patents
Info
- Publication number
- BE463000A BE463000A BE463000DA BE463000A BE 463000 A BE463000 A BE 463000A BE 463000D A BE463000D A BE 463000DA BE 463000 A BE463000 A BE 463000A
- Authority
- BE
- Belgium
Links
Classifications
- 
        - H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic elements; 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)
- Filters And Equalizers (AREA)
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title | 
|---|---|---|---|
| FR994902T | 1945-02-17 | 
Publications (1)
| Publication Number | Publication Date | 
|---|---|
| BE463000A true BE463000A (en:Method) | 
Family
ID=9556754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date | 
|---|---|---|---|
| BE463000D BE463000A (en:Method) | 1945-02-17 | 
Country Status (4)
| Country | Link | 
|---|---|
| BE (1) | BE463000A (en:Method) | 
| CH (1) | CH252008A (en:Method) | 
| FR (1) | FR994902A (en:Method) | 
| GB (1) | GB617974A (en:Method) | 
- 
        0
        - BE BE463000D patent/BE463000A/xx unknown
 
- 
        1945
        - 1945-02-17 FR FR994902D patent/FR994902A/fr not_active Expired
 
- 
        1946
        - 1946-02-13 CH CH252008D patent/CH252008A/fr unknown
- 1946-03-12 GB GB7747/46A patent/GB617974A/en not_active Expired
 
Also Published As
| Publication number | Publication date | 
|---|---|
| CH252008A (fr) | 1947-11-30 | 
| FR994902A (fr) | 1951-11-23 | 
| GB617974A (en) | 1949-02-15 |