NL19243C - - Google Patents
Info
- Publication number
- NL19243C NL19243C NL19243DA NL19243C NL 19243 C NL19243 C NL 19243C NL 19243D A NL19243D A NL 19243DA NL 19243 C NL19243 C NL 19243C
- Authority
- NL
- Netherlands
Links
Classifications
-
- 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)
- Solid Thermionic Cathode (AREA)
- Discharge Lamp (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEA37991D DE523892C (de) | 1922-06-23 | 1922-06-23 | Gluehkathode aus schwer schmelzbarem Metall, insbesondere Wolfram |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL19243C true NL19243C (de) |
Family
ID=6930534
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL19243D NL19243C (de) | 1922-06-23 |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE523892C (de) |
| NL (1) | NL19243C (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE756326C (de) * | 1937-02-20 | 1952-11-17 | Ulrich W Doering | Elektrische Entladungslampe mit Edelgasgrundfuellung |
-
0
- NL NL19243D patent/NL19243C/xx active
-
1922
- 1922-06-23 DE DEA37991D patent/DE523892C/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE523892C (de) | 1931-04-29 |