BE380581A - - Google Patents
Info
- Publication number
- BE380581A BE380581A BE380581DA BE380581A BE 380581 A BE380581 A BE 380581A BE 380581D A BE380581D A BE 380581DA BE 380581 A BE380581 A BE 380581A
- 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 |
|---|---|---|---|
| DE379432X | 1930-06-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE380581A true BE380581A (en:Method) |
Family
ID=6344695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE380581D BE380581A (en:Method) | 1930-06-18 |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE380581A (en:Method) |
| FR (1) | FR718758A (en:Method) |
| GB (1) | GB379432A (en:Method) |
-
0
- BE BE380581D patent/BE380581A/xx unknown
-
1931
- 1931-06-17 FR FR718758D patent/FR718758A/fr not_active Expired
- 1931-06-17 GB GB17543/31A patent/GB379432A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR718758A (fr) | 1932-01-28 |
| GB379432A (en) | 1932-09-01 |