BE473801A - - Google Patents
Info
- Publication number
- BE473801A BE473801A BE473801DA BE473801A BE 473801 A BE473801 A BE 473801A BE 473801D A BE473801D A BE 473801DA BE 473801 A BE473801 A BE 473801A
- 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
- H03H9/02—Details
- H03H9/05—Holders; 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 |
|---|---|---|---|
| US338871A US2275122A (en) | 1940-06-05 | 1940-06-05 | Piezoelectric crystal apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE473801A true BE473801A (xx) |
Family
ID=23326497
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE473801D BE473801A (xx) | 1940-06-05 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US2275122A (xx) |
| BE (1) | BE473801A (xx) |
| CH (1) | CH265038A (xx) |
| FR (1) | FR962792A (xx) |
| GB (1) | GB624257A (xx) |
| NL (1) | NL68457C (xx) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR861808A (fr) * | 1939-08-02 | 1941-02-18 | Materiel Telephonique | éléments piezo-électriques |
| GB634450A (en) * | 1947-09-17 | 1950-03-22 | Automatic Telephone & Elect | Improvements in or relating to mounting arrangements for piezo electric crystals |
| US2657320A (en) * | 1948-12-30 | 1953-10-27 | Bell Telephone Labor Inc | Piezoelectric crystal unit |
| US2559494A (en) * | 1949-04-29 | 1951-07-03 | Rca Corp | Piezoelectric crystal holder |
| US2608597A (en) * | 1950-01-10 | 1952-08-26 | Bell Telephone Labor Inc | Cage assembly for crystals |
| US2699508A (en) * | 1951-12-21 | 1955-01-11 | Selectronics Inc | Method of mounting and construction of mounting for low frequency piezoelectric crystals |
| GB720702A (en) * | 1952-02-14 | 1954-12-22 | Kristall Verarbeitung Neckarbi | Piezoelectric crystal resonator support |
| DE970658C (de) * | 1952-02-14 | 1958-10-16 | Kristall Verarbeitung Neckarbi | Halterung fuer Schwingquarze |
| US2850651A (en) * | 1954-03-02 | 1958-09-02 | P R Hoffman Company | Piezoelectric crystal support |
| US2954490A (en) * | 1956-05-15 | 1960-09-27 | Bell Telephone Labor Inc | Crystal unit mounting |
| BE559249A (xx) * | 1956-07-19 | |||
| US3054915A (en) * | 1959-03-16 | 1962-09-18 | Hill Electronics Inc | Mount for piezo-electric crystal |
| US3088190A (en) * | 1959-07-03 | 1963-05-07 | Lewis R Heim | Method for making antifriction bearings |
| US3754153A (en) * | 1971-12-02 | 1973-08-21 | Bulova Watch Co Inc | Crystal mounting assembly |
| JPS49122768A (xx) * | 1973-03-27 | 1974-11-25 | Suwa Seikosha Kk |
-
0
- FR FR962792D patent/FR962792A/fr not_active Expired
- BE BE473801D patent/BE473801A/xx unknown
- NL NL68457D patent/NL68457C/xx active
-
1940
- 1940-06-05 US US338871A patent/US2275122A/en not_active Expired - Lifetime
-
1947
- 1947-05-03 CH CH265038D patent/CH265038A/de unknown
- 1947-06-20 GB GB16341/47A patent/GB624257A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR962792A (xx) | 1950-06-20 |
| US2275122A (en) | 1942-03-03 |
| NL68457C (xx) | |
| CH265038A (de) | 1949-11-15 |
| GB624257A (en) | 1949-06-01 |