FR635081A - - Google Patents
Info
- Publication number
- FR635081A FR635081A FR635081DA FR635081A FR 635081 A FR635081 A FR 635081A FR 635081D A FR635081D A FR 635081DA FR 635081 A FR635081 A FR 635081A
- Authority
- FR
- France
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
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 |
|---|---|---|---|
| GB1599926A GB277754A (en) | 1926-06-25 | 1926-06-25 | Improvements in or relating to thermionic discharge tubes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR635081A true FR635081A (instruction) | 1928-03-07 |
Family
ID=10069348
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR635081D Expired FR635081A (instruction) | 1926-06-25 |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR635081A (instruction) |
| GB (1) | GB277754A (instruction) |
-
0
- FR FR635081D patent/FR635081A/fr not_active Expired
-
1926
- 1926-06-25 GB GB1599926A patent/GB277754A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB277754A (en) | 1927-09-26 |