NL30970C - - Google Patents
Info
- Publication number
- NL30970C NL30970C NL30970DA NL30970C NL 30970 C NL30970 C NL 30970C NL 30970D A NL30970D A NL 30970DA NL 30970 C NL30970 C NL 30970C
- 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)
- Cold Cathode And The Manufacture (AREA)
- Particle Accelerators (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE306960X | 1928-02-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL30970C true NL30970C (xx) |
Family
ID=6121282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL30970D NL30970C (xx) | 1928-02-28 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US1917044A (xx) |
| BE (1) | BE358445A (xx) |
| FR (1) | FR670304A (xx) |
| GB (1) | GB306960A (xx) |
| NL (1) | NL30970C (xx) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2426247A (en) * | 1943-03-24 | 1947-08-26 | United Electronies Company | Getter apparatus |
| US2933633A (en) * | 1955-02-16 | 1960-04-19 | Gen Electric | Electric discharge device |
| US2927069A (en) * | 1956-12-07 | 1960-03-01 | Columbia Broadcasting Syst Inc | Method of insulating electron discharge tube elements |
-
0
- BE BE358445D patent/BE358445A/xx unknown
- NL NL30970D patent/NL30970C/xx active
-
1929
- 1929-02-26 US US342930A patent/US1917044A/en not_active Expired - Lifetime
- 1929-02-26 FR FR670304D patent/FR670304A/fr not_active Expired
- 1929-02-27 GB GB6366/29A patent/GB306960A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US1917044A (en) | 1933-07-04 |
| GB306960A (en) | 1930-07-28 |
| BE358445A (xx) | |
| FR670304A (fr) | 1929-11-27 |