NL21613C - - Google Patents
Info
- Publication number
- NL21613C NL21613C NL21613DA NL21613C NL 21613 C NL21613 C NL 21613C NL 21613D A NL21613D A NL 21613DA NL 21613 C NL21613 C NL 21613C
- 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)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL1721169X | 1926-04-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL21613C true NL21613C (de) |
Family
ID=19873003
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL21613D NL21613C (de) | 1926-04-06 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US1721169A (de) |
| BE (1) | BE340879A (de) |
| DE (1) | DE499670C (de) |
| NL (1) | NL21613C (de) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3515629A (en) * | 1966-09-30 | 1970-06-02 | Raytheon Co | Electrical device having intermediate dielectric layer |
| DE4314312A1 (de) * | 1993-04-30 | 1994-11-03 | Teves Gmbh Alfred | Elektrohydraulische Druckregelvorrichtung |
-
0
- NL NL21613D patent/NL21613C/xx active
- BE BE340879D patent/BE340879A/xx unknown
-
1926
- 1926-10-12 DE DEN26448D patent/DE499670C/de not_active Expired
-
1927
- 1927-04-06 US US181619A patent/US1721169A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| BE340879A (de) | |
| DE499670C (de) | 1930-06-12 |
| US1721169A (en) | 1929-07-16 |