FR583145A - - Google Patents
Info
- Publication number
- FR583145A FR583145A FR583145DA FR583145A FR 583145 A FR583145 A FR 583145A FR 583145D A FR583145D A FR 583145DA FR 583145 A FR583145 A FR 583145A
- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
- H01J9/02—Manufacture of electrodes or electrode systems
- H01J9/04—Manufacture of electrodes or electrode systems of thermionic cathodes
- H01J9/042—Manufacture, activation of the emissive part
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR583145A true FR583145A (es) | 1925-01-07 |
Family
ID=1539768
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR583145D Expired FR583145A (es) |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR583145A (es) |
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0
- FR FR583145D patent/FR583145A/fr not_active Expired