NL21422C - - Google Patents
Info
- Publication number
- NL21422C NL21422C NL21422DA NL21422C NL 21422 C NL21422 C NL 21422C NL 21422D A NL21422D A NL 21422DA NL 21422 C NL21422 C NL 21422C
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
- H01J1/02—Main electrodes
- H01J1/13—Solid thermionic cathodes
- H01J1/20—Cathodes heated indirectly by an electric current; Cathodes heated by electron or ion bombardment
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL1916408X | 1927-04-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL21422C true NL21422C (en, 2012) |
Family
ID=19873295
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL21422D NL21422C (en, 2012) | 1927-04-13 |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US1916408A (en, 2012) |
| NL (1) | NL21422C (en, 2012) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL99734B (en, 2012) * | 1940-12-05 | |||
| US2534688A (en) * | 1943-03-11 | 1950-12-19 | Products & Licensing Corp | Multiunit electron discharge tube |
| US2629757A (en) * | 1943-11-08 | 1953-02-24 | Warren Dunham Foster | Method of construction of sensitive thermopiles |
| US2432260A (en) * | 1945-01-18 | 1947-12-09 | Albert G Thomas | Electronic switch |
| US2852690A (en) * | 1945-11-29 | 1958-09-16 | Ernest O Lawrence | Calutrons |
-
0
- NL NL21422D patent/NL21422C/xx active
-
1928
- 1928-02-18 US US255211A patent/US1916408A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US1916408A (en) | 1933-07-04 |