FR847113A - - Google Patents
Info
- Publication number
- FR847113A FR847113A FR847113DA FR847113A FR 847113 A FR847113 A FR 847113A FR 847113D A FR847113D A FR 847113DA FR 847113 A FR847113 A FR 847113A
- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2893/00—Discharge tubes and lamps
- H01J2893/0001—Electrodes and electrode systems suitable for discharge tubes or lamps
- H01J2893/0012—Constructional arrangements
- H01J2893/0026—Machines for manufacture of grids or anodes
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR847113A true FR847113A (pt) | 1939-10-03 |
Family
ID=1554441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR847113D Expired FR847113A (pt) |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR847113A (pt) |
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0
- FR FR847113D patent/FR847113A/fr not_active Expired