NL89871C - - Google Patents
Info
- Publication number
- NL89871C NL89871C NL89871DA NL89871C NL 89871 C NL89871 C NL 89871C NL 89871D A NL89871D A NL 89871DA NL 89871 C NL89871 C NL 89871C
- 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
- H01J1/26—Supports for the emissive material
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US199752A US2686889A (en) | 1950-12-08 | 1950-12-08 | Cathode sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL89871C true NL89871C (https=) |
Family
ID=22738873
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL89871D NL89871C (https=) | 1950-12-08 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US2686889A (https=) |
| BE (1) | BE507670A (https=) |
| DE (1) | DE886044C (https=) |
| FR (1) | FR1054093A (https=) |
| GB (1) | GB697581A (https=) |
| NL (1) | NL89871C (https=) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1612635A (en) * | 1922-09-22 | 1926-12-28 | Verona Tool Works | Method of making rail bonds |
| US2001355A (en) * | 1932-06-18 | 1935-05-14 | Patent Button Co | Die or anchor for tack buttons |
| US2029482A (en) * | 1934-04-14 | 1936-02-04 | Haslauer Adolf | Cathode for thermionic valves |
| US2324177A (en) * | 1942-01-01 | 1943-07-13 | Rca Corp | Cathode sleeve |
| US2536677A (en) * | 1944-08-31 | 1951-01-02 | Sylvania Electric Prod | Base threading method and apparatus |
-
0
- BE BE507670D patent/BE507670A/xx unknown
- NL NL89871D patent/NL89871C/xx active
-
1950
- 1950-12-08 US US199752A patent/US2686889A/en not_active Expired - Lifetime
-
1951
- 1951-11-12 FR FR1054093D patent/FR1054093A/fr not_active Expired
- 1951-12-06 GB GB28660/51A patent/GB697581A/en not_active Expired
- 1951-12-08 DE DER7827A patent/DE886044C/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| BE507670A (https=) | |
| DE886044C (de) | 1953-08-10 |
| FR1054093A (fr) | 1954-02-08 |
| US2686889A (en) | 1954-08-17 |
| GB697581A (en) | 1953-09-23 |