NL40533C - - Google Patents
Info
- Publication number
- NL40533C NL40533C NL72352A NL72352A NL40533C NL 40533 C NL40533 C NL 40533C NL 72352 A NL72352 A NL 72352A NL 72352 A NL72352 A NL 72352A NL 40533 C NL40533 C NL 40533C
- Authority
- NL
- Netherlands
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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J19/00—Details of vacuum tubes of the types covered by group H01J21/00
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2893/00—Discharge tubes and lamps
- H01J2893/0001—Electrodes and electrode systems suitable for discharge tubes or lamps
- H01J2893/001—Non-constructive schematic arrangements
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DET43654D DE635542C (de) | 1934-03-01 | 1934-03-01 | Entladungsroehre mit einer mittelbar geheizten Kathode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL40533C true NL40533C (da) | 1937-04-15 |
Family
ID=7561564
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL72352A NL40533C (da) | 1934-03-01 | 1935-02-02 |
Country Status (4)
| Country | Link |
|---|---|
| DE (1) | DE635542C (da) |
| FR (1) | FR786029A (da) |
| GB (1) | GB444844A (da) |
| NL (1) | NL40533C (da) |
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 |
-
1934
- 1934-03-01 DE DET43654D patent/DE635542C/de not_active Expired
-
1935
- 1935-02-02 NL NL72352A patent/NL40533C/xx active
- 1935-02-22 FR FR786029D patent/FR786029A/fr not_active Expired
- 1935-02-28 GB GB6398/35A patent/GB444844A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB444844A (en) | 1936-03-30 |
| DE635542C (de) | 1936-09-19 |
| FR786029A (fr) | 1935-08-24 |