BE421193A - - Google Patents
Info
- Publication number
- BE421193A BE421193A BE421193DA BE421193A BE 421193 A BE421193 A BE 421193A BE 421193D A BE421193D A BE 421193DA BE 421193 A BE421193 A BE 421193A
- 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
- H01J43/025—Circuits therefor
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE205331X | 1936-04-25 | ||
| DE260536X | 1936-05-26 | ||
| DE160636X | 1936-06-16 | ||
| DE110137X | 1937-01-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE421193A true BE421193A (en:Method) |
Family
ID=27430442
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE421193D BE421193A (en:Method) | 1936-04-25 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US2201587A (en:Method) |
| BE (1) | BE421193A (en:Method) |
| CH (1) | CH205331A (en:Method) |
| FR (1) | FR820970A (en:Method) |
| GB (1) | GB499487A (en:Method) |
| NL (1) | NL53528C (en:Method) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2558021A (en) * | 1939-03-08 | 1951-06-26 | Univ Leland Stanford Junior | Thermionic vacuum tube and circuit |
| BE457111A (en:Method) * | 1943-08-04 | |||
| GB683061A (en) * | 1948-01-24 | 1952-11-19 | Emi Ltd | Improvements relating to thermionic valves utilising secondary electron emission amplification |
| US2617948A (en) * | 1948-11-18 | 1952-11-11 | Heinz E Kallmann | Electron multiplying device |
| US2798903A (en) * | 1951-03-16 | 1957-07-09 | Henry M Spencer | Signal amplification system |
| US2748313A (en) * | 1951-05-02 | 1956-05-29 | Hartford Nat Bank & Trust Co | Electron beam tube |
| US3093766A (en) * | 1961-05-10 | 1963-06-11 | Gen Electric | Gas generating electric discharge device |
-
0
- NL NL53528D patent/NL53528C/xx active
- BE BE421193D patent/BE421193A/xx unknown
-
1937
- 1937-04-12 CH CH205331D patent/CH205331A/de unknown
- 1937-04-21 US US138103A patent/US2201587A/en not_active Expired - Lifetime
- 1937-04-21 GB GB11376/37A patent/GB499487A/en not_active Expired
- 1937-04-23 FR FR820970D patent/FR820970A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CH205331A (de) | 1939-06-15 |
| NL53528C (en:Method) | |
| US2201587A (en) | 1940-05-21 |
| GB499487A (en) | 1939-01-23 |
| FR820970A (fr) | 1937-11-24 |