NL27012C - - Google Patents
Info
- Publication number
- NL27012C NL27012C NL27012DA NL27012C NL 27012 C NL27012 C NL 27012C NL 27012D A NL27012D A NL 27012DA NL 27012 C NL27012 C NL 27012C
- 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
- H01J9/045—Activation of assembled cathode
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Inorganic Fibers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US180252A US1695819A (en) | 1927-04-01 | 1927-04-01 | Activation of filaments |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL27012C true NL27012C (en:Method) |
Family
ID=22659773
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL27012D NL27012C (en:Method) | 1927-04-01 |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US1695819A (en:Method) |
| NL (1) | NL27012C (en:Method) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2420014A (en) * | 1944-04-18 | 1947-05-06 | Eitel Mccullough Inc | Cathode |
| US2456761A (en) * | 1947-04-19 | 1948-12-21 | Eitel Mccullough Inc | Rugged cathode |
| US2693431A (en) * | 1948-01-27 | 1954-11-02 | Eitcl Mccullough Inc | Method of making electron emitters |
| US2788289A (en) * | 1951-06-29 | 1957-04-09 | Climax Molybdenum Co | Method of forming protective coatings for molybdenum and molybdenum-base alloys |
| US2658844A (en) * | 1952-08-30 | 1953-11-10 | Rca Corp | Process of carburizing |
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0
- NL NL27012D patent/NL27012C/xx active
-
1927
- 1927-04-01 US US180252A patent/US1695819A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US1695819A (en) | 1928-12-18 |