BE447593A - - Google Patents
Info
- Publication number
- BE447593A BE447593A BE447593DA BE447593A BE 447593 A BE447593 A BE 447593A BE 447593D A BE447593D A BE 447593DA BE 447593 A BE447593 A BE 447593A
- 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
- H01J9/12—Manufacture of electrodes or electrode systems of photo-emissive cathodes; of secondary-emission electrodes
- H01J9/125—Manufacture of electrodes or electrode systems of photo-emissive cathodes; of secondary-emission electrodes of secondary emission electrodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2201/00—Electrodes common to discharge tubes
- H01J2201/32—Secondary emission electrodes
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR260185X | 1941-07-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE447593A true BE447593A (en) |
Family
ID=8884958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE447593D BE447593A (en) | 1941-07-11 |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE447593A (en) |
| CH (1) | CH260185A (en) |
| FR (1) | FR959704A (en) |
-
0
- BE BE447593D patent/BE447593A/xx unknown
- FR FR959704D patent/FR959704A/fr not_active Expired
-
1943
- 1943-03-25 CH CH260185D patent/CH260185A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| FR959704A (en) | 1950-04-04 |
| CH260185A (en) | 1949-02-28 |