BE475719A - - Google Patents
Info
- Publication number
- BE475719A BE475719A BE475719DA BE475719A BE 475719 A BE475719 A BE 475719A BE 475719D A BE475719D A BE 475719DA BE 475719 A BE475719 A BE 475719A
- 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 |
|---|---|---|---|
| NL270673X | 1946-08-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE475719A true BE475719A (https=) |
Family
ID=19781917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE475719D BE475719A (https=) | 1946-08-30 |
Country Status (5)
| Country | Link |
|---|---|
| BE (1) | BE475719A (https=) |
| CH (1) | CH270673A (https=) |
| FR (1) | FR952558A (https=) |
| GB (1) | GB656522A (https=) |
| NL (1) | NL74345C (https=) |
-
0
- NL NL74345D patent/NL74345C/xx active
- BE BE475719D patent/BE475719A/xx unknown
-
1947
- 1947-08-27 GB GB23671/47A patent/GB656522A/en not_active Expired
- 1947-08-28 FR FR952558D patent/FR952558A/fr not_active Expired
- 1947-08-28 CH CH270673D patent/CH270673A/de unknown
Also Published As
| Publication number | Publication date |
|---|---|
| FR952558A (fr) | 1949-11-21 |
| CH270673A (de) | 1950-09-15 |
| GB656522A (en) | 1951-08-22 |
| NL74345C (https=) |