BE447583A - - Google Patents
Info
- Publication number
- BE447583A BE447583A BE447583DA BE447583A BE 447583 A BE447583 A BE 447583A BE 447583D A BE447583D A BE 447583DA BE 447583 A BE447583 A BE 447583A
- 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
- H01J1/14—Solid thermionic cathodes characterised by the material
- H01J1/142—Solid thermionic cathodes characterised by the material with alkaline-earth metal oxides, or such oxides used in conjunction with reducing agents, as an emissive material
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE886985X | 1941-11-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE447583A true BE447583A (https=) |
Family
ID=6833575
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE447583D BE447583A (https=) | 1941-11-05 |
Country Status (2)
| Country | Link |
|---|---|
| BE (1) | BE447583A (https=) |
| FR (1) | FR886985A (https=) |
-
0
- BE BE447583D patent/BE447583A/xx unknown
-
1942
- 1942-10-19 FR FR886985D patent/FR886985A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR886985A (fr) | 1943-10-29 |