BE457759A - - Google Patents
Info
- Publication number
- BE457759A BE457759A BE457759DA BE457759A BE 457759 A BE457759 A BE 457759A BE 457759D A BE457759D A BE 457759DA BE 457759 A BE457759 A BE 457759A
- 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)
- Solid Thermionic Cathode (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BE258432X | 1944-11-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE457759A true BE457759A (zh) |
Family
ID=3866699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE457759D BE457759A (zh) | 1944-11-04 |
Country Status (5)
| Country | Link |
|---|---|
| BE (1) | BE457759A (zh) |
| CH (1) | CH258432A (zh) |
| DE (1) | DE819296C (zh) |
| FR (1) | FR936338A (zh) |
| GB (1) | GB637385A (zh) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1052578B (de) * | 1953-06-18 | 1959-03-12 | Siemens Ag | Verfahren zur Herstellung einer Oxydkathode mit einer auf die Oberflaeche des Kathodenkoerpers aufgesinterten, porigen Metallschicht |
-
0
- BE BE457759D patent/BE457759A/xx unknown
-
1946
- 1946-09-07 CH CH258432D patent/CH258432A/fr unknown
- 1946-11-27 FR FR936338D patent/FR936338A/fr not_active Expired
-
1947
- 1947-04-30 GB GB11592/47A patent/GB637385A/en not_active Expired
-
1948
- 1948-10-26 DE DEP19566A patent/DE819296C/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR936338A (fr) | 1948-07-16 |
| CH258432A (fr) | 1948-11-30 |
| GB637385A (en) | 1950-05-17 |
| DE819296C (de) | 1951-10-31 |