NL198428A - - Google Patents
Info
- Publication number
- NL198428A NL198428A NL198428DA NL198428A NL 198428 A NL198428 A NL 198428A NL 198428D A NL198428D A NL 198428DA NL 198428 A NL198428 A NL 198428A
- 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
- H01J1/28—Dispenser-type cathodes, e.g. L-cathode
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1124860X | 1954-06-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL198428A true NL198428A (en) |
Family
ID=7724980
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL208455D NL208455A (en) | 1954-06-29 | ||
| NL198428D NL198428A (en) | 1954-06-29 |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL208455D NL208455A (en) | 1954-06-29 |
Country Status (2)
| Country | Link |
|---|---|
| FR (2) | FR1124860A (en) |
| NL (2) | NL198428A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1614566B1 (en) * | 1967-07-17 | 1970-11-05 | Siemens Ag | Indirectly heated supply cathode, especially MK cathode |
| FR2494035A1 (en) * | 1980-11-07 | 1982-05-14 | Thomson Csf | THERMO-ELECTRONIC CATHODE FOR MICROFREQUENCY TUBE AND TUBE INCORPORATING SUCH A CATHODE |
| JPH11339633A (en) * | 1997-11-04 | 1999-12-10 | Sony Corp | Impregnated cathode and manufacture therefor and electron gun and electronic tube |
| JP3596453B2 (en) * | 2000-09-28 | 2004-12-02 | ウシオ電機株式会社 | Short arc discharge lamp |
-
0
- NL NL208455D patent/NL208455A/xx unknown
- NL NL198428D patent/NL198428A/xx unknown
-
1955
- 1955-05-20 FR FR1124860D patent/FR1124860A/en not_active Expired
-
1956
- 1956-04-30 FR FR69716D patent/FR69716E/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR1124860A (en) | 1956-10-19 |
| NL208455A (en) | |
| FR69716E (en) | 1958-11-19 |