NL36224C - - Google Patents
Info
- Publication number
- NL36224C NL36224C NL36224DA NL36224C NL 36224 C NL36224 C NL 36224C NL 36224D A NL36224D A NL 36224DA NL 36224 C NL36224 C NL 36224C
- 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
- H01J1/14—Solid thermionic cathodes characterised by the material
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1947130A GB357632A (en) | 1930-06-26 | 1930-06-26 | Low temperature emissive cathodes for electric discharge devices |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL36224C true NL36224C (en:Method) |
Family
ID=10129904
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL36224D NL36224C (en:Method) | 1930-06-26 |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE622973C (en:Method) |
| GB (1) | GB357632A (en:Method) |
| NL (1) | NL36224C (en:Method) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1046201B (de) * | 1955-04-18 | 1958-12-11 | Philips Nv | Heizfaden fuer direkt geheizte, mit einer Emissionsschicht versehene Gluehkathoden fuer Batterieroehren |
-
0
- NL NL36224D patent/NL36224C/xx active
-
1930
- 1930-06-26 GB GB1947130A patent/GB357632A/en not_active Expired
- 1930-12-31 DE DE1930622973D patent/DE622973C/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE622973C (de) | 1935-12-11 |
| GB357632A (en) | 1931-09-28 |