BE404740A - - Google Patents
Info
- Publication number
- BE404740A BE404740A BE404740DA BE404740A BE 404740 A BE404740 A BE 404740A BE 404740D A BE404740D A BE 404740DA BE 404740 A BE404740 A BE 404740A
- Authority
- BE
- Belgium
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 |
|---|---|---|---|
| DE777506X | 1933-09-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE404740A true BE404740A (fr) |
Family
ID=6686771
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE404740D BE404740A (fr) | 1933-09-07 |
Country Status (2)
| Country | Link |
|---|---|
| BE (1) | BE404740A (fr) |
| FR (1) | FR777506A (fr) |
-
0
- BE BE404740D patent/BE404740A/xx unknown
-
1934
- 1934-08-20 FR FR777506D patent/FR777506A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR777506A (fr) | 1935-02-22 |