BE355841A - - Google Patents
Info
- Publication number
- BE355841A BE355841A BE355841DA BE355841A BE 355841 A BE355841 A BE 355841A BE 355841D A BE355841D A BE 355841DA BE 355841 A BE355841 A BE 355841A
- 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
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US300614XA | 1927-11-16 | 1927-11-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE355841A true BE355841A (da) |
Family
ID=21852299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE355841D BE355841A (da) | 1927-11-16 |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE355841A (da) |
| FR (1) | FR664744A (da) |
| GB (1) | GB300614A (da) |
| NL (1) | NL24130C (da) |
-
0
- NL NL24130D patent/NL24130C/xx active
- BE BE355841D patent/BE355841A/xx unknown
-
1928
- 1928-11-14 FR FR664744D patent/FR664744A/fr not_active Expired
- 1928-11-15 GB GB33473/28A patent/GB300614A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR664744A (fr) | 1929-09-06 |
| GB300614A (en) | 1929-04-25 |
| NL24130C (da) |