NL17071C - - Google Patents
Info
- Publication number
- NL17071C NL17071C NL17071DA NL17071C NL 17071 C NL17071 C NL 17071C NL 17071D A NL17071D A NL 17071DA NL 17071 C NL17071 C NL 17071C
- 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
- H01J1/15—Cathodes heated directly by an electric current
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J21/00—Vacuum tubes
- H01J21/02—Tubes with a single discharge path
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1074225A GB255543A (en) | 1925-04-24 | 1925-04-24 | Improvements in or relating to thermionic valves |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL17071C true NL17071C (en:Method) |
Family
ID=9973437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL17071D NL17071C (en:Method) | 1925-04-24 |
Country Status (2)
| Country | Link |
|---|---|
| GB (1) | GB255543A (en:Method) |
| NL (1) | NL17071C (en:Method) |
-
0
- NL NL17071D patent/NL17071C/xx active
-
1925
- 1925-04-24 GB GB1074225A patent/GB255543A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB255543A (en) | 1926-07-26 |