NL56446C - - Google Patents
Info
- Publication number
- NL56446C NL56446C NL56446DA NL56446C NL 56446 C NL56446 C NL 56446C NL 56446D A NL56446D A NL 56446DA NL 56446 C NL56446 C NL 56446C
- 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
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE875625X | 1940-11-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL56446C true NL56446C (de) |
Family
ID=6817361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL56446D NL56446C (de) | 1940-11-28 |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR875625A (de) |
| NL (1) | NL56446C (de) |
-
0
- NL NL56446D patent/NL56446C/xx active
-
1941
- 1941-09-26 FR FR875625D patent/FR875625A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR875625A (fr) | 1942-09-29 |