BE479958A - - Google Patents
Info
- Publication number
- BE479958A BE479958A BE479958DA BE479958A BE 479958 A BE479958 A BE 479958A BE 479958D A BE479958D A BE 479958DA BE 479958 A BE479958 A BE 479958A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P5/00—Coupling devices of the waveguide type
- H01P5/04—Coupling devices of the waveguide type with variable factor of coupling
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB20113/43A GB573124A (en) | 1943-12-01 | 1943-12-01 | Improvements in impedance matching transformers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE479958A true BE479958A (it) |
Family
ID=10140596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE479958D BE479958A (it) | 1943-12-01 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2512681A (it) |
| BE (1) | BE479958A (it) |
| FR (1) | FR936710A (it) |
| GB (1) | GB573124A (it) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2132208A (en) * | 1935-12-27 | 1938-10-04 | Francis W Dunmore | Ultrahigh frequency radio amplifier |
| US2373233A (en) * | 1940-07-18 | 1945-04-10 | Rca Corp | High-frequency coupling circuit |
-
0
- BE BE479958D patent/BE479958A/xx unknown
-
1943
- 1943-12-01 GB GB20113/43A patent/GB573124A/en not_active Expired
-
1944
- 1944-11-11 US US563072A patent/US2512681A/en not_active Expired - Lifetime
-
1946
- 1946-04-17 FR FR936710D patent/FR936710A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US2512681A (en) | 1950-06-27 |
| GB573124A (en) | 1945-11-07 |
| FR936710A (fr) | 1948-07-28 |