NL58139C - - Google Patents
Info
- Publication number
- NL58139C NL58139C NL58139DA NL58139C NL 58139 C NL58139 C NL 58139C NL 58139D A NL58139D A NL 58139DA NL 58139 C NL58139 C NL 58139C
- 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
- H01J1/26—Supports for the emissive material
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL250196X | 1940-06-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL58139C true NL58139C (en:Method) |
Family
ID=19781054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL58139D NL58139C (en:Method) | 1940-06-05 |
Country Status (2)
| Country | Link |
|---|---|
| CH (1) | CH250196A (en:Method) |
| NL (1) | NL58139C (en:Method) |
-
0
- NL NL58139D patent/NL58139C/xx active
-
1941
- 1941-06-13 CH CH250196D patent/CH250196A/de unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CH250196A (de) | 1947-08-15 |