NL246331A - - Google Patents
Info
- Publication number
- NL246331A NL246331A NL246331DA NL246331A NL 246331 A NL246331 A NL 246331A NL 246331D A NL246331D A NL 246331DA NL 246331 A NL246331 A NL 246331A
- 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 |
|---|---|---|---|
| DE1951S0023911 DE890999C (de) | 1951-07-11 | 1951-07-11 | Indirekt beheizte Kathode fuer elektrische Entladungsgefaesse |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL246331A true NL246331A (fr) |
Family
ID=7477605
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL246331D NL246331A (fr) | 1951-07-11 | ||
| NL246331A NL111216C (fr) | 1951-07-11 | 1952-06-07 |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL246331A NL111216C (fr) | 1951-07-11 | 1952-06-07 |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE890999C (fr) |
| FR (1) | FR1065540A (fr) |
| NL (2) | NL111216C (fr) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB810202A (en) * | 1955-06-10 | 1959-03-11 | Vickers Electrical Co Ltd | Improvements relating to thermionic cathodes for electron discharge devices |
| NL262042A (fr) * | 1960-03-11 | |||
| NL274464A (fr) * | 1961-02-07 | |||
| NL7905542A (nl) * | 1979-07-17 | 1981-01-20 | Philips Nv | Naleveringskathode. |
| US5343112A (en) * | 1989-01-18 | 1994-08-30 | Balzers Aktiengesellschaft | Cathode arrangement |
-
0
- NL NL246331D patent/NL246331A/xx unknown
-
1951
- 1951-07-11 DE DE1951S0023911 patent/DE890999C/de not_active Expired
-
1952
- 1952-06-07 NL NL246331A patent/NL111216C/xx active
- 1952-07-10 FR FR1065540D patent/FR1065540A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR1065540A (fr) | 1954-05-26 |
| NL111216C (fr) | 1960-02-16 |
| DE890999C (de) | 1953-09-24 |