NL89999C - - Google Patents
Info
- Publication number
- NL89999C NL89999C NL89999DA NL89999C NL 89999 C NL89999 C NL 89999C NL 89999D A NL89999D A NL 89999DA NL 89999 C NL89999 C NL 89999C
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J23/00—Details of transit-time tubes of the types covered by group H01J25/00
- H01J23/02—Electrodes; Magnetic control means; Screens
- H01J23/04—Cathodes
- H01J23/05—Cathodes having a cylindrical emissive surface, e.g. cathodes for magnetrons
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4555A GB783294A (en) | 1955-01-03 | 1955-01-03 | Improvements in or relating to indirectly heated cathode structures for magnetrons |
| GB2813994X | 1955-09-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL89999C true NL89999C ( ) |
Family
ID=32327992
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL89999D NL89999C ( ) | 1955-01-03 | ||
| NL202111D NL202111A ( ) | 1955-01-03 |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL202111D NL202111A ( ) | 1955-01-03 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US2813994A ( ) |
| DE (1) | DE1120608B ( ) |
| NL (2) | NL202111A ( ) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL129021B ( ) * | 1942-05-01 | |||
| US2414605A (en) * | 1943-05-13 | 1947-01-21 | Westinghouse Electric Corp | Cathode mounting |
| BE470767A ( ) * | 1945-02-17 | |||
| US2510267A (en) * | 1946-10-30 | 1950-06-06 | Rca Corp | Grid cathode assembly for cathoderay tubes |
| US2569847A (en) * | 1949-04-08 | 1951-10-02 | Eitel Mccullough Inc | High-frequency tetrode with built-in capacitor |
| GB703172A (en) * | 1951-01-11 | 1954-01-27 | English Electric Valve Co Ltd | Improvements in or relating to magnetrons |
-
0
- NL NL89999D patent/NL89999C/xx active
- NL NL202111D patent/NL202111A/xx unknown
-
1955
- 1955-10-31 US US543974A patent/US2813994A/en not_active Expired - Lifetime
- 1955-11-26 DE DEE11600A patent/DE1120608B/de active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| US2813994A (en) | 1957-11-19 |
| DE1120608B (de) | 1961-12-28 |
| NL202111A ( ) |