BE422740A - - Google Patents
Info
- Publication number
- BE422740A BE422740A BE422740DA BE422740A BE 422740 A BE422740 A BE 422740A BE 422740D A BE422740D A BE 422740DA BE 422740 A BE422740 A BE 422740A
- 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
- H01J43/06—Electrode arrangements
- H01J43/08—Cathode arrangements
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US91807A US2219871A (en) | 1936-07-22 | 1936-07-22 | Electric discharge device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE422740A true BE422740A (en) |
Family
ID=22229743
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE422740D BE422740A (en) | 1936-07-22 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US2219871A (en) |
| BE (1) | BE422740A (en) |
| GB (1) | GB499649A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR959708A (en) * | 1941-07-28 | 1950-04-04 |
-
0
- BE BE422740D patent/BE422740A/xx unknown
-
1936
- 1936-07-22 US US91807A patent/US2219871A/en not_active Expired - Lifetime
-
1937
- 1937-07-22 GB GB20323/??A patent/GB499649A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB499649A (en) | 1939-01-23 |
| US2219871A (en) | 1940-10-29 |