BE460643A - - Google Patents
Info
- Publication number
- BE460643A BE460643A BE460643DA BE460643A BE 460643 A BE460643 A BE 460643A BE 460643D A BE460643D A BE 460643DA BE 460643 A BE460643 A BE 460643A
- 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
- H03H9/02—Details
- H03H9/05—Holders or supports
- H03H9/09—Elastic or damping supports
Landscapes
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US545847A US2399908A (en) | 1944-07-20 | 1944-07-20 | Frequency determining unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE460643A true BE460643A (en:Method) |
Family
ID=24177786
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE460643D BE460643A (en:Method) | 1944-07-20 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US2399908A (en:Method) |
| BE (1) | BE460643A (en:Method) |
| CH (1) | CH256673A (en:Method) |
| FR (1) | FR926631A (en:Method) |
| GB (1) | GB596012A (en:Method) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2482451A (en) * | 1945-06-07 | 1949-09-20 | Reeves Hoffman Corp | Piezoelectric crystal holder |
| US2497966A (en) * | 1946-01-26 | 1950-02-21 | Reeves Hoffman Corp | Crystal holder |
| DE1766158B1 (de) * | 1968-04-11 | 1972-05-25 | Matsushita Electric Ind Co Ltd | Piezoelektrische keramische resonatoreinheit |
-
0
- BE BE460643D patent/BE460643A/xx unknown
-
1944
- 1944-07-20 US US545847A patent/US2399908A/en not_active Expired - Lifetime
-
1945
- 1945-07-13 GB GB17956/45A patent/GB596012A/en not_active Expired
- 1945-07-20 CH CH256673D patent/CH256673A/de unknown
-
1946
- 1946-03-20 FR FR926631D patent/FR926631A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US2399908A (en) | 1946-05-07 |
| FR926631A (fr) | 1947-10-07 |
| GB596012A (en) | 1947-12-24 |
| CH256673A (de) | 1948-08-31 |