BE494113A - - Google Patents
Info
- Publication number
- BE494113A BE494113A BE494113DA BE494113A BE 494113 A BE494113 A BE 494113A BE 494113D A BE494113D A BE 494113DA BE 494113 A BE494113 A BE 494113A
- 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 |
|---|---|---|---|
| NL1013196X | 1949-02-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE494113A true BE494113A (en:Method) |
Family
ID=19866947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE494113D BE494113A (en:Method) | 1949-02-25 |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE494113A (en:Method) |
| FR (1) | FR1013196A (en:Method) |
| NL (1) | NL72671C (en:Method) |
-
0
- NL NL72671D patent/NL72671C/xx active
- BE BE494113D patent/BE494113A/xx unknown
-
1950
- 1950-02-23 FR FR1013196D patent/FR1013196A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR1013196A (fr) | 1952-07-23 |
| NL72671C (en:Method) |