BE348417A - - Google Patents
Info
- Publication number
- BE348417A BE348417A BE348417DA BE348417A BE 348417 A BE348417 A BE 348417A BE 348417D A BE348417D A BE 348417DA BE 348417 A BE348417 A BE 348417A
- 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
- H03H9/15—Constructional features of resonators consisting of piezoelectric or electrostrictive material
- H03H9/17—Constructional features of resonators consisting of piezoelectric or electrostrictive material having a single resonator
- H03H9/19—Constructional features of resonators consisting of piezoelectric or electrostrictive material having a single resonator consisting of quartz
-
- 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
- H03H9/56—Monolithic crystal filters
Landscapes
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE284357T | 1927-01-28 | ||
| US248145A US1869556A (en) | 1927-01-28 | 1928-01-20 | Method and means for vibrating crystals |
| US463805A US1874960A (en) | 1927-01-28 | 1930-06-25 | Means for vibrating crystals |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE348417A true BE348417A (en:Method) |
Family
ID=31950062
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE34841D BE34841A (en:Method) | 1927-01-28 | ||
| BE348417D BE348417A (en:Method) | 1927-01-28 |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE34841D BE34841A (en:Method) | 1927-01-28 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US1874960A (en:Method) |
| BE (2) | BE348417A (en:Method) |
| FR (1) | FR652814A (en:Method) |
| GB (1) | GB284357A (en:Method) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2719929A (en) * | 1955-10-04 | brown | ||
| US2774892A (en) * | 1951-05-29 | 1956-12-18 | Bendix Aviat Corp | Annular vibrator with lumped loading |
| US2944117A (en) * | 1955-06-20 | 1960-07-05 | Erie Resistor Corp | Bender type piezoelectric transducer |
| NL236717A (en:Method) * | 1958-03-03 | |||
| CH607880B (fr) * | 1976-01-16 | Centre Electron Horloger | Resonateur piezo-electrique. |
-
0
- BE BE34841D patent/BE34841A/xx unknown
- BE BE348417D patent/BE348417A/xx unknown
-
1928
- 1928-01-27 FR FR652814D patent/FR652814A/fr not_active Expired
- 1928-01-28 GB GB2840/28A patent/GB284357A/en not_active Expired
-
1930
- 1930-06-25 US US463805A patent/US1874960A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US1874960A (en) | 1932-08-30 |
| BE34841A (en:Method) | |
| GB284357A (en:Method) | 1929-04-29 |
| FR652814A (fr) | 1929-03-13 |