NL15389C - - Google Patents
Info
- Publication number
- NL15389C NL15389C NL15389DA NL15389C NL 15389 C NL15389 C NL 15389C NL 15389D A NL15389D A NL 15389DA NL 15389 C NL15389 C NL 15389C
- 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)
- Other Surface Treatments For Metallic Materials (AREA)
- Powder Metallurgy (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL209730X | 1923-01-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL15389C true NL15389C (da) |
Family
ID=19778764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL15389D NL15389C (da) | 1923-01-12 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US1735080A (da) |
| FR (1) | FR578694A (da) |
| GB (1) | GB209730A (da) |
| NL (1) | NL15389C (da) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2525262A (en) * | 1948-02-18 | 1950-10-10 | Cooper Hewitt Electric Co | Method of producing highly emissive electrodes |
| US2507696A (en) * | 1948-03-27 | 1950-05-16 | Bell Telephone Labor Inc | Glow discharge device |
| US2525263A (en) * | 1950-08-25 | 1950-10-10 | Michel E Macksoud | Method of producing highly emissive electrodes |
| NL96177C (da) * | 1952-02-27 | |||
| US2908593A (en) * | 1952-04-17 | 1959-10-13 | Edward S Naidus | Electrical capacitors |
| US2757309A (en) * | 1953-09-24 | 1956-07-31 | Gera Corp | Emissive cathode |
| GB2192751B (en) * | 1986-07-14 | 1991-02-13 | Denki Kagaku Kogyo Kk | Method of making a thermionic cathode structure. |
-
0
- NL NL15389D patent/NL15389C/xx active
-
1923
- 1923-12-14 FR FR578694D patent/FR578694A/fr not_active Expired
- 1923-12-31 US US683729A patent/US1735080A/en not_active Expired - Lifetime
-
1924
- 1924-01-01 GB GB37/24A patent/GB209730A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR578694A (fr) | 1924-10-02 |
| GB209730A (en) | 1924-08-14 |
| US1735080A (en) | 1929-11-12 |