NL65447C - - Google Patents
Info
- Publication number
- NL65447C NL65447C NL65447DA NL65447C NL 65447 C NL65447 C NL 65447C NL 65447D A NL65447D A NL 65447DA NL 65447 C NL65447 C NL 65447C
- Authority
- NL
- Netherlands
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
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H3/00—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators
- H03H3/007—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators for the manufacture of electromechanical resonators or networks
- H03H3/02—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators for the manufacture of electromechanical resonators or networks for the manufacture of piezoelectric or electrostrictive resonators or networks
- H03H3/04—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators for the manufacture of electromechanical resonators or networks for the manufacture of piezoelectric or electrostrictive resonators or networks for obtaining desired frequency or temperature coefficient
Landscapes
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US409370A US2319357A (en) | 1941-09-03 | 1941-09-03 | Variable air-gap crystal holder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL65447C true NL65447C (en(2012)) |
Family
ID=23620184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL65447D NL65447C (en(2012)) | 1941-09-03 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2319357A (en(2012)) |
| FR (1) | FR948694A (en(2012)) |
| GB (1) | GB625533A (en(2012)) |
| NL (1) | NL65447C (en(2012)) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2427825A (en) * | 1943-11-06 | 1947-09-23 | Rca Corp | Art of mounting piezoelectric crystals |
-
0
- NL NL65447D patent/NL65447C/xx active
-
1941
- 1941-09-03 US US409370A patent/US2319357A/en not_active Expired - Lifetime
-
1947
- 1947-07-01 FR FR948694D patent/FR948694A/fr not_active Expired
- 1947-08-07 GB GB21774/47A patent/GB625533A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR948694A (fr) | 1949-08-08 |
| US2319357A (en) | 1943-05-18 |
| GB625533A (en) | 1949-06-29 |