BE426040A - - Google Patents
Info
- Publication number
- BE426040A BE426040A BE426040DA BE426040A BE 426040 A BE426040 A BE 426040A BE 426040D A BE426040D A BE 426040DA BE 426040 A BE426040 A BE 426040A
- 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
- H01J1/32—Secondary-electron-emitting electrodes
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US123203A US2147669A (en) | 1937-01-30 | 1937-01-30 | Secondary electron emitting electrode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE426040A true BE426040A (en:Method) |
Family
ID=22407273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE426040D BE426040A (en:Method) | 1937-01-30 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US2147669A (en:Method) |
| BE (1) | BE426040A (en:Method) |
| CH (1) | CH204059A (en:Method) |
| DE (1) | DE750047C (en:Method) |
| GB (1) | GB491287A (en:Method) |
| NL (1) | NL51148C (en:Method) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2443324A (en) * | 1942-11-07 | 1948-06-15 | Charles Schiffman | Electronic tube |
| US2428289A (en) * | 1942-11-07 | 1947-09-30 | Charles Schiffman | Electron tube coating |
| US2527981A (en) * | 1945-08-23 | 1950-10-31 | Bramley Jenny | Secondary-electron emission |
| US2639963A (en) * | 1948-04-05 | 1953-05-26 | Sylvania Electric Prod | Secondary emitter and method of manufacture |
| US2530946A (en) * | 1949-04-02 | 1950-11-21 | Bell Telephone Labor Inc | Secondary electron emitter |
| US2846338A (en) * | 1954-08-03 | 1958-08-05 | William G Shepherd | Secondary electron emitter |
| US4047999A (en) * | 1974-09-19 | 1977-09-13 | Francis John Salgo | Method of making a mobile ion film memory |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE356578A (en:Method) * | 1927-12-14 | |||
| US2141322A (en) * | 1935-06-25 | 1938-12-27 | Rca Corp | Cascaded secondary electron emitter amplifier |
-
0
- BE BE426040D patent/BE426040A/xx unknown
- NL NL51148D patent/NL51148C/xx active
-
1937
- 1937-01-30 US US123203A patent/US2147669A/en not_active Expired - Lifetime
-
1938
- 1938-01-07 GB GB578/38A patent/GB491287A/en not_active Expired
- 1938-01-28 CH CH204059D patent/CH204059A/de unknown
- 1938-02-01 DE DER101443D patent/DE750047C/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL51148C (en:Method) | |
| US2147669A (en) | 1939-02-21 |
| CH204059A (de) | 1939-04-15 |
| GB491287A (en) | 1938-08-30 |
| DE750047C (de) | 1944-12-11 |