BE476636A - - Google Patents
Info
- Publication number
- BE476636A BE476636A BE476636DA BE476636A BE 476636 A BE476636 A BE 476636A BE 476636D A BE476636D A BE 476636DA BE 476636 A BE476636 A BE 476636A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
- H01J1/02—Main electrodes
- H01J1/13—Solid thermionic cathodes
- H01J1/20—Cathodes heated indirectly by an electric current; Cathodes heated by electron or ion bombardment
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1570839A GB531076A (en) | 1939-05-26 | 1939-05-26 | Improvements in or relating to thermionic electrode structures |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE476636A true BE476636A (it) |
Family
ID=10064044
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE476636D BE476636A (it) | 1939-05-26 |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE476636A (it) |
| FR (1) | FR941242A (it) |
| GB (1) | GB531076A (it) |
-
0
- BE BE476636D patent/BE476636A/xx unknown
-
1939
- 1939-05-26 GB GB1570839A patent/GB531076A/en not_active Expired
-
1947
- 1947-01-08 FR FR941242D patent/FR941242A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB531076A (en) | 1940-12-30 |
| FR941242A (fr) | 1949-01-05 |