BE354919A - - Google Patents
Info
- Publication number
- BE354919A BE354919A BE354919DA BE354919A BE 354919 A BE354919 A BE 354919A BE 354919D A BE354919D A BE 354919DA BE 354919 A BE354919 A BE 354919A
- 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 |
|---|---|---|---|
| DE299325X | 1927-10-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE354919A true BE354919A (en:Method) |
Family
ID=6091220
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE354919D BE354919A (en:Method) | 1927-10-21 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US1941692A (en:Method) |
| BE (1) | BE354919A (en:Method) |
| FR (1) | FR661967A (en:Method) |
| GB (1) | GB299325A (en:Method) |
-
0
- BE BE354919D patent/BE354919A/xx unknown
-
1928
- 1928-09-26 US US308403A patent/US1941692A/en not_active Expired - Lifetime
- 1928-10-10 FR FR661967D patent/FR661967A/fr not_active Expired
- 1928-10-22 GB GB30547/28A patent/GB299325A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR661967A (fr) | 1929-08-01 |
| GB299325A (en) | 1929-10-31 |
| US1941692A (en) | 1934-01-02 |