BE453138A - - Google Patents
Info
- Publication number
- BE453138A BE453138A BE453138DA BE453138A BE 453138 A BE453138 A BE 453138A BE 453138D A BE453138D A BE 453138DA BE 453138 A BE453138 A BE 453138A
- 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 |
|---|---|---|---|
| NL244478X | 1942-11-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE453138A true BE453138A (fr) |
Family
ID=19780771
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE453138D BE453138A (fr) | 1942-11-12 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US2589331A (fr) |
| BE (1) | BE453138A (fr) |
| CH (1) | CH244478A (fr) |
| FR (1) | FR899538A (fr) |
| GB (1) | GB619885A (fr) |
| NL (1) | NL62253C (fr) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3513419A (en) * | 1965-11-26 | 1970-05-19 | Mitsubishi Electric Corp | Device for switching frequency bands in broadcasting receiver |
| JPS5922408B2 (ja) * | 1979-02-26 | 1984-05-26 | シャープ株式会社 | 電子同調受信機 |
| NL8701565A (nl) * | 1987-07-03 | 1989-02-01 | Nedap Nv | Identificatiesysteem met twee werkingsmodes. |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT135515B (de) * | 1932-10-13 | 1933-11-25 | Julius Bajer | Schwingkreisaggregat. |
| CH194606A (de) * | 1936-10-28 | 1937-12-15 | Schaub Georg Von | Uberlagerungsempfänger. |
| GB490206A (en) * | 1936-12-08 | 1938-08-08 | Paul Gabriel Wardle | Improvements in or relating to tuning controls for radio receivers |
| BE438137A (fr) * | 1939-02-28 | |||
| BE551064A (fr) * | 1940-08-28 | |||
| GB551064A (en) * | 1941-12-18 | 1943-02-05 | Philips Nv | Improvements in or relating to radio receivers |
| US2470426A (en) * | 1942-10-28 | 1949-05-17 | Zenith Radio Corp | Spread band tuning circuit |
-
0
- BE BE453138D patent/BE453138A/xx unknown
- NL NL62253D patent/NL62253C/xx active
-
1943
- 1943-11-10 CH CH244478D patent/CH244478A/de unknown
- 1943-11-10 FR FR899538D patent/FR899538A/fr not_active Expired
-
1946
- 1946-04-26 US US665033A patent/US2589331A/en not_active Expired - Lifetime
- 1946-08-22 GB GB25079/46A patent/GB619885A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB619885A (en) | 1949-03-16 |
| FR899538A (fr) | 1945-06-04 |
| CH244478A (de) | 1946-09-15 |
| NL62253C (fr) | |
| US2589331A (en) | 1952-03-18 |