BE444205A - - Google Patents
Info
- Publication number
- BE444205A BE444205A BE444205DA BE444205A BE 444205 A BE444205 A BE 444205A BE 444205D A BE444205D A BE 444205DA BE 444205 A BE444205 A BE 444205A
- 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
- H01J43/04—Electron multipliers
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE224059X | 1939-03-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE444205A true BE444205A (en) | 1942-02-28 |
Family
ID=5853869
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE444205D BE444205A (en) | 1939-03-29 | 1942-01-19 |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE444205A (en) |
| CH (1) | CH224059A (en) |
| DE (1) | DE890234C (en) |
| FR (1) | FR887279A (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR816742A (en) * | 1936-01-24 | 1937-08-16 | Fernseh Ag | Device for the modulation of electric currents by means of a photocell with several grids |
| FR821172A (en) * | 1936-04-30 | 1937-11-29 | Aeg | Braun tube using electronic multiplier as emission source |
| US2205071A (en) * | 1936-07-31 | 1940-06-18 | Bell Telephone Labor Inc | Space discharge apparatus and circuits therefor |
| CH199297A (en) * | 1936-08-28 | 1938-08-15 | Ver Gluehlampen Und Elektrizit | Method and device for controlling electron beams in electron multiplier tubes. |
-
1939
- 1939-03-30 DE DEB9906D patent/DE890234C/en not_active Expired
-
1941
- 1941-12-31 CH CH224059D patent/CH224059A/en unknown
-
1942
- 1942-01-19 BE BE444205D patent/BE444205A/xx unknown
- 1942-10-27 FR FR887279D patent/FR887279A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CH224059A (en) | 1942-10-31 |
| FR887279A (en) | 1943-11-09 |
| DE890234C (en) | 1953-09-17 |