BE473973A - - Google Patents
Info
- Publication number
- BE473973A BE473973A BE473973DA BE473973A BE 473973 A BE473973 A BE 473973A BE 473973D A BE473973D A BE 473973DA BE 473973 A BE473973 A BE 473973A
- 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 devices; Electromechanical resonators
- H03H9/0023—Balance-unbalance or balance-balance networks
- H03H9/0095—Balance-unbalance or balance-balance networks using bulk acoustic wave devices
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B15/00—Drawing glass upwardly from the melt
- C03B15/02—Drawing glass sheets
- C03B15/08—Drawing glass sheets by means of bars below the surface of the melt
-
- 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
- H03H9/54—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)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US446479A US2342875A (en) | 1942-06-10 | 1942-06-10 | Wave filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE473973A true BE473973A (de) |
Family
ID=23772747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE473973D BE473973A (de) | 1942-06-10 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US2342875A (de) |
| BE (1) | BE473973A (de) |
| CH (1) | CH265654A (de) |
| FR (1) | FR948264A (de) |
| GB (1) | GB624292A (de) |
| NL (2) | NL83190C (de) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2452114A (en) * | 1945-04-26 | 1948-10-26 | Bell Telephone Labor Inc | Balanced wave filter |
| DE1252330B (de) * | 1958-09-17 | |||
| US5499002A (en) * | 1994-04-28 | 1996-03-12 | Kinsman; Robert G. | Resonator filter utilizing cascaded impedance inverters |
-
0
- BE BE473973D patent/BE473973A/xx unknown
- NL NL134514D patent/NL134514B/xx unknown
- NL NL83190D patent/NL83190C/xx active
-
1942
- 1942-06-10 US US446479A patent/US2342875A/en not_active Expired - Lifetime
-
1947
- 1947-05-28 CH CH265654D patent/CH265654A/de unknown
- 1947-06-20 FR FR948264D patent/FR948264A/fr not_active Expired
- 1947-06-27 GB GB17026/47A patent/GB624292A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CH265654A (de) | 1949-12-15 |
| GB624292A (en) | 1949-06-01 |
| NL134514B (de) | |
| NL83190C (de) | |
| FR948264A (fr) | 1949-07-27 |
| US2342875A (en) | 1944-02-29 |