BE498898A - - Google Patents
Info
- Publication number
- BE498898A BE498898A BE498898DA BE498898A BE 498898 A BE498898 A BE 498898A BE 498898D A BE498898D A BE 498898DA BE 498898 A BE498898 A BE 498898A
- 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
- H01J1/28—Dispenser-type cathodes, e.g. L-cathode
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL284922X | 1949-10-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE498898A true BE498898A (zh) |
Family
ID=19782466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE498898D BE498898A (zh) | 1949-10-26 |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE498898A (zh) |
| CH (1) | CH284922A (zh) |
| FR (1) | FR1026469A (zh) |
| GB (1) | GB672610A (zh) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1073635B (de) * | 1960-01-21 | Egyesült Izzolämpa es Villamossägi Reszvenytärsasäg, Budapest | Indirekt geheizte Vorratskathode und Verfahren zur Herstellung derselben |
-
0
- BE BE498898D patent/BE498898A/xx unknown
-
1950
- 1950-10-23 GB GB25757/50A patent/GB672610A/en not_active Expired
- 1950-10-24 CH CH284922D patent/CH284922A/de unknown
- 1950-10-24 FR FR1026469D patent/FR1026469A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CH284922A (de) | 1952-08-15 |
| GB672610A (en) | 1952-05-21 |
| FR1026469A (fr) | 1953-04-28 |