BE431974A - - Google Patents
Info
- Publication number
- BE431974A BE431974A BE431974DA BE431974A BE 431974 A BE431974 A BE 431974A BE 431974D A BE431974D A BE 431974DA BE 431974 A BE431974 A BE 431974A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J17/00—Gas-filled discharge tubes with solid cathode
- H01J17/02—Details
- H01J17/04—Electrodes; Screens
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE207409X | 1938-01-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE431974A true BE431974A (it) |
Family
ID=5793708
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE431974D BE431974A (it) | 1938-01-03 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US2225645A (it) |
| BE (1) | BE431974A (it) |
| CH (1) | CH207409A (it) |
| FR (1) | FR848394A (it) |
| GB (1) | GB508190A (it) |
| NL (1) | NL52546C (it) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE897294C (de) * | 1943-03-06 | 1953-11-19 | Philips Nv | Zwei- oder mehranodige gas- und/oder dampfgefuellte Gleichrichterroehre, in der die Gluehkathode innerhalb eines Kathodenschirmes angeordnet ist |
| US2479529A (en) * | 1945-11-23 | 1949-08-16 | Westinghouse Electric Corp | Electron discharge device |
| US2729833A (en) * | 1950-11-04 | 1956-01-10 | Illinois Tool Works | Assembly machine and method |
| US2707753A (en) * | 1951-03-28 | 1955-05-03 | Westinghouse Electric Corp | Electron discharge device |
| DE1151883B (de) * | 1958-05-02 | 1963-07-25 | Edgerton Germeshausen And Grie | Gasentladungsroehre |
| US3295013A (en) * | 1960-08-09 | 1966-12-27 | Varian Associates | Electron tubes containing gas below critical pressure |
-
0
- NL NL52546D patent/NL52546C/xx active
- BE BE431974D patent/BE431974A/xx unknown
-
1938
- 1938-12-17 US US246441A patent/US2225645A/en not_active Expired - Lifetime
- 1938-12-31 GB GB37995/38A patent/GB508190A/en not_active Expired
- 1938-12-31 CH CH207409D patent/CH207409A/de unknown
-
1939
- 1939-01-02 FR FR848394D patent/FR848394A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL52546C (it) | |
| FR848394A (fr) | 1939-10-27 |
| US2225645A (en) | 1940-12-24 |
| CH207409A (de) | 1939-10-31 |
| GB508190A (en) | 1939-06-27 |