BE447584A - - Google Patents
Info
- Publication number
- BE447584A BE447584A BE447584DA BE447584A BE 447584 A BE447584 A BE 447584A BE 447584D A BE447584D A BE 447584DA BE 447584 A BE447584 A BE 447584A
- 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
- H01J1/22—Heaters
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- 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)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE886987X | 1941-11-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE447584A true BE447584A (it) |
Family
ID=6833576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE447584D BE447584A (it) | 1941-11-05 |
Country Status (2)
| Country | Link |
|---|---|
| BE (1) | BE447584A (it) |
| FR (1) | FR886987A (it) |
-
0
- BE BE447584D patent/BE447584A/xx unknown
-
1942
- 1942-10-19 FR FR886987D patent/FR886987A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR886987A (fr) | 1943-10-29 |