BE420071A - - Google Patents
Info
- Publication number
- BE420071A BE420071A BE420071DA BE420071A BE 420071 A BE420071 A BE 420071A BE 420071D A BE420071D A BE 420071DA BE 420071 A BE420071 A BE 420071A
- 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
- H01J1/26—Supports for the emissive material
-
- 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
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL476090X | 1936-02-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE420071A true BE420071A (en:Method) |
Family
ID=19786520
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE420071D BE420071A (en:Method) | 1936-02-19 |
Country Status (4)
| Country | Link |
|---|---|
| AT (1) | AT158535B (en:Method) |
| BE (1) | BE420071A (en:Method) |
| FR (1) | FR818011A (en:Method) |
| GB (1) | GB476090A (en:Method) |
-
0
- BE BE420071D patent/BE420071A/xx unknown
-
1936
- 1936-04-21 AT AT158535D patent/AT158535B/de active
-
1937
- 1937-02-16 GB GB4680/37A patent/GB476090A/en not_active Expired
- 1937-02-17 FR FR818011D patent/FR818011A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| AT158535B (de) | 1940-04-25 |
| GB476090A (en) | 1937-12-01 |
| FR818011A (fr) | 1937-09-16 |