BE404932A - - Google Patents
Info
- Publication number
- BE404932A BE404932A BE404932DA BE404932A BE 404932 A BE404932 A BE 404932A BE 404932D A BE404932D A BE 404932DA BE 404932 A BE404932 A BE 404932A
- 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 |
|---|---|---|---|
| DE419352X | 1933-09-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE404932A true BE404932A (en:Method) |
Family
ID=6448971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE404932D BE404932A (en:Method) | 1933-09-07 |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE404932A (en:Method) |
| FR (1) | FR777069A (en:Method) |
| GB (1) | GB419352A (en:Method) |
-
0
- BE BE404932D patent/BE404932A/xx unknown
-
1934
- 1934-08-09 FR FR777069D patent/FR777069A/fr not_active Expired
- 1934-08-16 GB GB23667/34A patent/GB419352A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR777069A (fr) | 1935-02-11 |
| GB419352A (en) | 1934-11-09 |