BE468739A - - Google Patents
Info
- Publication number
- BE468739A BE468739A BE468739DA BE468739A BE 468739 A BE468739 A BE 468739A BE 468739D A BE468739D A BE 468739DA BE 468739 A BE468739 A BE 468739A
- 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 |
|---|---|---|---|
| GB264441X | 1939-09-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE468739A true BE468739A (pt) |
Family
ID=10243695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE468739D BE468739A (pt) | 1939-09-26 |
Country Status (5)
| Country | Link |
|---|---|
| BE (1) | BE468739A (pt) |
| CH (1) | CH264441A (pt) |
| ES (1) | ES175483A1 (pt) |
| FR (1) | FR947131A (pt) |
| GB (1) | GB532920A (pt) |
-
0
- BE BE468739D patent/BE468739A/xx unknown
-
1939
- 1939-09-26 GB GB26667/39A patent/GB532920A/en not_active Expired
-
1946
- 1946-09-26 FR FR947131D patent/FR947131A/fr not_active Expired
- 1946-10-26 ES ES0175483A patent/ES175483A1/es not_active Expired
-
1947
- 1947-02-15 CH CH264441D patent/CH264441A/de unknown
Also Published As
| Publication number | Publication date |
|---|---|
| ES175483A1 (es) | 1946-12-01 |
| FR947131A (fr) | 1949-06-23 |
| CH264441A (de) | 1949-10-15 |
| GB532920A (en) | 1941-02-03 |