BE380141A - - Google Patents
Info
- Publication number
- BE380141A BE380141A BE380141DA BE380141A BE 380141 A BE380141 A BE 380141A BE 380141D A BE380141D A BE 380141DA BE 380141 A BE380141 A BE 380141A
- 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
- H01J1/14—Solid thermionic cathodes characterised by the material
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE379702X | 1930-05-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE380141A true BE380141A (en(2012)) |
Family
ID=6344745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE380141D BE380141A (en(2012)) | 1930-05-31 |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE380141A (en(2012)) |
| FR (1) | FR717915A (en(2012)) |
| GB (1) | GB379702A (en(2012)) |
-
0
- BE BE380141D patent/BE380141A/xx unknown
-
1931
- 1931-05-29 FR FR717915D patent/FR717915A/fr not_active Expired
- 1931-05-30 GB GB15857/31A patent/GB379702A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB379702A (en) | 1932-08-30 |
| FR717915A (fr) | 1932-01-16 |