BE454622A - - Google Patents
Info
- Publication number
- BE454622A BE454622A BE454622DA BE454622A BE 454622 A BE454622 A BE 454622A BE 454622D A BE454622D A BE 454622DA BE 454622 A BE454622 A BE 454622A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
- H03D7/18—Modifications of frequency-changers for eliminating image frequencies
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Superheterodyne Receivers (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL246850X | 1943-03-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE454622A true BE454622A (ja) |
Family
ID=19780883
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE454622D BE454622A (ja) | 1943-03-03 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US2510002A (ja) |
| BE (1) | BE454622A (ja) |
| CH (1) | CH246850A (ja) |
| DE (1) | DE965853C (ja) |
| FR (1) | FR902306A (ja) |
| GB (1) | GB617312A (ja) |
| NL (1) | NL65133C (ja) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL172064B (nl) * | 1952-08-26 | Bristol Myers Co | Werkwijze voor het bereiden van cefalosporanzuurderivaten. |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE396449A (ja) * | 1932-05-23 | |||
| GB403709A (en) * | 1932-05-26 | 1933-12-27 | Emi Ltd | Improvements relating to the reduction of interference in thermionic valve circuits |
| GB412253A (en) * | 1932-12-19 | 1934-06-19 | Emi Ltd | Improvements in and relating to wireless receivers |
| AT142712B (de) * | 1933-04-05 | 1935-09-10 | Hazeltine Corp | Siebkreisanordnung. |
| US2050912A (en) * | 1935-04-08 | 1936-08-11 | Philco Radio & Television Corp | Antenna coupling device |
| NL45380C (ja) * | 1936-01-06 | |||
| DE709096C (de) * | 1937-04-17 | 1941-08-06 | Telefunken Gmbh | Superhetempfaenger mit induktiver Antennenankopplung und mehreren durch Kurzschliessen oder Abschalten von Zusatzspulen umschaltbaren Empfangsbereichen |
-
0
- NL NL65133D patent/NL65133C/xx active
- BE BE454622D patent/BE454622A/xx unknown
-
1944
- 1944-02-29 DE DEN2253D patent/DE965853C/de not_active Expired
- 1944-03-01 FR FR902306D patent/FR902306A/fr not_active Expired
- 1944-05-01 CH CH246850D patent/CH246850A/de unknown
-
1946
- 1946-07-16 US US684074A patent/US2510002A/en not_active Expired - Lifetime
- 1946-09-26 GB GB28806/46A patent/GB617312A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US2510002A (en) | 1950-05-30 |
| CH246850A (de) | 1947-01-31 |
| GB617312A (en) | 1949-02-03 |
| FR902306A (fr) | 1945-08-28 |
| DE965853C (de) | 1957-06-27 |
| NL65133C (ja) |