BE353553A - - Google Patents
Info
- Publication number
- BE353553A BE353553A BE353553DA BE353553A BE 353553 A BE353553 A BE 353553A BE 353553D A BE353553D A BE 353553DA BE 353553 A BE353553 A BE 353553A
- 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
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL1937735X | 1927-09-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE353553A true BE353553A (xx) |
Family
ID=19873340
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE353553D BE353553A (xx) | 1927-09-15 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US1937735A (xx) |
| BE (1) | BE353553A (xx) |
| FR (1) | FR658973A (xx) |
-
0
- BE BE353553D patent/BE353553A/xx unknown
-
1928
- 1928-08-13 FR FR658973D patent/FR658973A/fr not_active Expired
- 1928-08-23 US US301534A patent/US1937735A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US1937735A (en) | 1933-12-05 |
| FR658973A (fr) | 1929-06-22 |