CH252008A - Electric filter. - Google Patents
Electric filter.Info
- Publication number
- CH252008A CH252008A CH252008DA CH252008A CH 252008 A CH252008 A CH 252008A CH 252008D A CH252008D A CH 252008DA CH 252008 A CH252008 A CH 252008A
- Authority
- CH
- Switzerland
- Prior art keywords
- electric filter
- filter
- electric
- 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 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 |
|---|---|
| CH252008A true CH252008A (en) | 1947-11-30 |
Family
ID=9556754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH252008D CH252008A (en) | 1945-02-17 | 1946-02-13 | Electric filter. |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE463000A (en) |
| CH (1) | CH252008A (en) |
| FR (1) | FR994902A (en) |
| GB (1) | GB617974A (en) |
-
0
- BE BE463000D patent/BE463000A/xx unknown
-
1945
- 1945-02-17 FR FR994902D patent/FR994902A/en not_active Expired
-
1946
- 1946-02-13 CH CH252008D patent/CH252008A/en unknown
- 1946-03-12 GB GB7747/46A patent/GB617974A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR994902A (en) | 1951-11-23 |
| BE463000A (en) | |
| GB617974A (en) | 1949-02-15 |
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