FR65790E - - Google Patents
Info
- Publication number
- FR65790E FR65790E FR65790DA FR65790E FR 65790 E FR65790 E FR 65790E FR 65790D A FR65790D A FR 65790DA FR 65790 E FR65790 E FR 65790E
- 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
- H01J40/00—Photoelectric discharge tubes not involving the ionisation of a gas
- H01J40/02—Details
- H01J40/04—Electrodes
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR65790E true FR65790E (oth) | 1956-03-12 |
Family
ID=1363892
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR65790D Expired FR65790E (oth) |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR65790E (oth) |
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0
- FR FR65790D patent/FR65790E/fr not_active Expired