BE447546A - - Google Patents
Info
- Publication number
- BE447546A BE447546A BE447546DA BE447546A BE 447546 A BE447546 A BE 447546A BE 447546D A BE447546D A BE 447546DA BE 447546 A BE447546 A BE 447546A
- 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
- H01J1/26—Supports for the emissive material
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL241286X | 1941-10-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE447546A true BE447546A (ja�@�@) |
Family
ID=19780558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE447546D BE447546A (ja�@�@) | 1941-10-14 |
Country Status (5)
| Country | Link |
|---|---|
| BE (1) | BE447546A (ja�@�@) |
| CH (1) | CH241286A (ja�@�@) |
| FR (1) | FR886734A (ja�@�@) |
| GB (1) | GB642364A (ja�@�@) |
| NL (1) | NL59337C (ja�@�@) |
-
0
- NL NL59337D patent/NL59337C/xx active
- BE BE447546D patent/BE447546A/xx unknown
-
1942
- 1942-10-12 CH CH241286D patent/CH241286A/de unknown
- 1942-10-12 FR FR886734D patent/FR886734A/fr not_active Expired
-
1946
- 1946-05-09 GB GB14034/46A patent/GB642364A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL59337C (ja�@�@) | |
| FR886734A (fr) | 1943-10-22 |
| GB642364A (en) | 1950-08-30 |
| CH241286A (de) | 1946-02-28 |