BE572249A - - Google Patents
Info
- Publication number
- BE572249A BE572249A BE572249DA BE572249A BE 572249 A BE572249 A BE 572249A BE 572249D A BE572249D A BE 572249DA BE 572249 A BE572249 A BE 572249A
- Authority
- BE
- Belgium
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
- H01J1/24—Insulating layer or body located between heater and emissive material
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL221853 | 1957-10-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE572249A true BE572249A (ja) |
Family
ID=19751014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE572249D BE572249A (ja) | 1957-10-23 |
Country Status (6)
| Country | Link |
|---|---|
| BE (1) | BE572249A (ja) |
| CH (1) | CH366906A (ja) |
| DE (1) | DE1093486B (ja) |
| FR (1) | FR1204244A (ja) |
| GB (1) | GB842822A (ja) |
| NL (1) | NL97485C (ja) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL84125C (ja) * | 1951-10-13 | |||
| FR1066786A (fr) * | 1951-11-26 | 1954-06-09 | Philips Nv | Tube électronique à chauffage indirect |
| NL87447C (ja) * | 1952-10-11 | |||
| GB787458A (en) * | 1953-12-10 | 1957-12-11 | Edison Swan Electric Co Ltd | Improvements relating to indirectly heated cathodes for thermionic valves |
-
0
- NL NL97485D patent/NL97485C/xx active
- BE BE572249D patent/BE572249A/xx unknown
-
1958
- 1958-10-18 DE DEN15739A patent/DE1093486B/de active Pending
- 1958-10-20 CH CH6525758A patent/CH366906A/de unknown
- 1958-10-21 FR FR1204244D patent/FR1204244A/fr not_active Expired
- 1958-10-21 GB GB3360358A patent/GB842822A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR1204244A (fr) | 1960-01-25 |
| NL97485C (ja) | |
| DE1093486B (de) | 1960-11-24 |
| CH366906A (de) | 1963-01-31 |
| GB842822A (en) | 1960-07-27 |