BE558059A - - Google Patents
Info
- Publication number
- BE558059A BE558059A BE558059DA BE558059A BE 558059 A BE558059 A BE 558059A BE 558059D A BE558059D A BE 558059DA BE 558059 A BE558059 A BE 558059A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
- H01J9/02—Manufacture of electrodes or electrode systems
- H01J9/04—Manufacture of electrodes or electrode systems of thermionic cathodes
- H01J9/042—Manufacture, activation of the emissive part
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Printing Plates And Materials Therefor (AREA)
- Electrodes For Compound Or Non-Metal Manufacture (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2965057A GB820915A (en) | 1957-09-20 | 1957-09-20 | Improvements in or relating to the manufacture of thermionic cathodes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE558059A true BE558059A (xx) | 1957-12-03 |
Family
ID=10294916
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE558059D BE558059A (xx) | 1957-09-20 | 1957-06-03 |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE558059A (xx) |
| FR (1) | FR1179378A (xx) |
| GB (1) | GB820915A (xx) |
-
1957
- 1957-06-03 BE BE558059D patent/BE558059A/xx unknown
- 1957-06-03 FR FR1179378D patent/FR1179378A/fr not_active Expired
- 1957-09-20 GB GB2965057A patent/GB820915A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR1179378A (fr) | 1959-05-22 |
| GB820915A (en) | 1959-09-30 |