BE450216A - - Google Patents
Info
- Publication number
- BE450216A BE450216A BE450216DA BE450216A BE 450216 A BE450216 A BE 450216A BE 450216D A BE450216D A BE 450216DA BE 450216 A BE450216 A BE 450216A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J43/00—Secondary-emission tubes; Electron-multiplier tubes
- H01J43/02—Tubes in which one or a few electrodes are secondary-electron emitting electrodes
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL614457X | 1942-04-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE450216A true BE450216A (en:Method) |
Family
ID=19788205
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE450216D BE450216A (en:Method) | 1942-04-17 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US2530743A (en:Method) |
| BE (1) | BE450216A (en:Method) |
| DE (1) | DE868028C (en:Method) |
| FR (1) | FR894033A (en:Method) |
| GB (1) | GB614457A (en:Method) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2042951A (en) * | 1930-04-05 | 1936-06-02 | Westinghouse Lamp Co | Electron discharge device |
| US2095337A (en) * | 1934-11-14 | 1937-10-12 | Everett P Loppacker | Vacuum tube electrode |
| NL48109C (en:Method) * | 1937-02-23 | |||
| BE433417A (en:Method) * | 1938-03-25 | |||
| US2223001A (en) * | 1939-04-24 | 1940-11-26 | Farnsworth Television & Radio | High efficiency amplifier |
| BE440174A (en:Method) * | 1939-06-06 |
-
0
- BE BE450216D patent/BE450216A/xx unknown
-
1943
- 1943-04-15 FR FR894033D patent/FR894033A/fr not_active Expired
- 1943-04-16 DE DEN2381D patent/DE868028C/de not_active Expired
-
1946
- 1946-05-09 US US668531A patent/US2530743A/en not_active Expired - Lifetime
- 1946-07-04 GB GB20016/46A patent/GB614457A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE868028C (de) | 1953-02-23 |
| FR894033A (fr) | 1944-12-12 |
| US2530743A (en) | 1950-11-21 |
| GB614457A (en) | 1948-12-15 |