FR879500A - - Google Patents
Info
- Publication number
- FR879500A FR879500A FR879500DA FR879500A FR 879500 A FR879500 A FR 879500A FR 879500D A FR879500D A FR 879500DA FR 879500 A FR879500 A FR 879500A
- 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
- H01J19/00—Details of vacuum tubes of the types covered by group H01J21/00
- H01J19/28—Non-electron-emitting electrodes; Screens
- H01J19/38—Control electrodes, e.g. grid
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR879500A true FR879500A (de) | 1943-03-05 |
Family
ID=1556063
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR879500D Expired FR879500A (de) |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR879500A (de) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2501002A (en) * | 1946-10-26 | 1950-03-21 | Sylvania Electric Prod | Control grid |
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0
- FR FR879500D patent/FR879500A/fr not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2501002A (en) * | 1946-10-26 | 1950-03-21 | Sylvania Electric Prod | Control grid |