BE420214A - - Google Patents
Info
- Publication number
- BE420214A BE420214A BE420214DA BE420214A BE 420214 A BE420214 A BE 420214A BE 420214D A BE420214D A BE 420214DA BE 420214 A BE420214 A BE 420214A
- 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 |
|---|---|---|---|
| DE475620X | 1936-03-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE420214A true BE420214A (en:Method) |
Family
ID=6541881
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE420214D BE420214A (en:Method) | 1936-03-03 |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE420214A (en:Method) |
| FR (1) | FR48186E (en:Method) |
| GB (1) | GB475620A (en:Method) |
| NL (1) | NL45733C (en:Method) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE857537C (de) * | 1942-07-17 | 1952-12-01 | Telefunken Gmbh | Elektrische Entladungsroehre mit mittelbar geheizter Kathode |
-
0
- BE BE420214D patent/BE420214A/xx unknown
-
1937
- 1937-01-27 NL NL80985A patent/NL45733C/xx active
- 1937-03-01 FR FR48186D patent/FR48186E/fr not_active Expired
- 1937-03-03 GB GB6285/37A patent/GB475620A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR48186E (fr) | 1937-11-03 |
| GB475620A (en) | 1937-11-23 |
| NL45733C (en:Method) | 1939-03-15 |