BE446251A - - Google Patents
Info
- Publication number
- BE446251A BE446251A BE446251DA BE446251A BE 446251 A BE446251 A BE 446251A BE 446251D A BE446251D A BE 446251DA BE 446251 A BE446251 A BE 446251A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
- H03J3/00—Continuous tuning
- H03J3/02—Details
- H03J3/10—Circuit arrangements for fine tuning, e.g. bandspreading
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL228559X | 1941-07-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE446251A true BE446251A (zh) |
Family
ID=19779790
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE446251D BE446251A (zh) | 1941-07-01 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US2486692A (zh) |
| BE (1) | BE446251A (zh) |
| CH (1) | CH228559A (zh) |
| FR (1) | FR883669A (zh) |
| GB (1) | GB613152A (zh) |
| NL (1) | NL57804C (zh) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2835813A (en) * | 1954-04-26 | 1958-05-20 | Philips Corp | Device for fine tuning of a resonant circuit |
| CH427931A (de) * | 1963-11-27 | 1967-01-15 | Imp Rundfunk Und Fernsehwerk G | Abstimmanordnung für ultrakurze Wellen |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2207254A (en) * | 1938-09-08 | 1940-07-09 | Rca Corp | Band spread tuning system |
| NL64971C (zh) * | 1938-10-13 | |||
| US2252919A (en) * | 1939-01-10 | 1941-08-19 | Lewis D Eckard | Multiwave variable resonator |
| US2402261A (en) * | 1942-11-21 | 1946-06-18 | Rca Corp | Permeability tuned band-spread circuit |
-
0
- BE BE446251D patent/BE446251A/xx unknown
- NL NL57804D patent/NL57804C/xx active
-
1942
- 1942-06-29 FR FR883669D patent/FR883669A/fr not_active Expired
- 1942-06-30 CH CH228559D patent/CH228559A/de unknown
-
1946
- 1946-04-17 GB GB11782/46A patent/GB613152A/en not_active Expired
- 1946-04-25 US US664724A patent/US2486692A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| NL57804C (zh) | |
| GB613152A (en) | 1948-11-23 |
| FR883669A (fr) | 1943-07-12 |
| US2486692A (en) | 1949-11-01 |
| CH228559A (de) | 1943-08-31 |