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 (ja�@�@) |
Family
ID=9556754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE463000D BE463000A (ja�@�@) | 1945-02-17 |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE463000A (ja�@�@) |
| CH (1) | CH252008A (ja�@�@) |
| FR (1) | FR994902A (ja�@�@) |
| GB (1) | GB617974A (ja�@�@) |
-
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 |
|---|---|
| GB617974A (en) | 1949-02-15 |
| CH252008A (fr) | 1947-11-30 |
| FR994902A (fr) | 1951-11-23 |