BE438658A - - Google Patents
Info
- Publication number
- BE438658A BE438658A BE438658DA BE438658A BE 438658 A BE438658 A BE 438658A BE 438658D A BE438658D A BE 438658DA BE 438658 A BE438658 A BE 438658A
- 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 |
|---|---|---|---|
| DE214025X | 1939-04-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE438658A true BE438658A (en0) |
Family
ID=5816468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE438658D BE438658A (en0) | 1939-04-28 |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE438658A (en0) |
| CH (1) | CH214025A (en0) |
| FR (1) | FR872416A (en0) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2635206A (en) * | 1949-01-06 | 1953-04-14 | Bell Telephone Labor Inc | Generation of microwaves |
| US2681995A (en) * | 1949-11-26 | 1954-06-22 | Zenith Radio Corp | Electron discharge device and circuits |
-
0
- BE BE438658D patent/BE438658A/xx unknown
-
1940
- 1940-04-08 CH CH214025D patent/CH214025A/de unknown
-
1941
- 1941-05-21 FR FR872416D patent/FR872416A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR872416A (fr) | 1942-06-08 |
| CH214025A (de) | 1941-03-31 |