NL71310C - - Google Patents
Info
- Publication number
- NL71310C NL71310C NL71310DA NL71310C NL 71310 C NL71310 C NL 71310C NL 71310D A NL71310D A NL 71310DA NL 71310 C NL71310 C NL 71310C
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J25/00—Transit-time tubes, e.g. klystrons, travelling-wave tubes, magnetrons
- H01J25/50—Magnetrons, i.e. tubes with a magnet system producing an H-field crossing the E-field
- H01J25/52—Magnetrons, i.e. tubes with a magnet system producing an H-field crossing the E-field with an electron space having a shape that does not prevent any electron from moving completely around the cathode or guide electrode
- H01J25/58—Magnetrons, i.e. tubes with a magnet system producing an H-field crossing the E-field with an electron space having a shape that does not prevent any electron from moving completely around the cathode or guide electrode having a number of resonators; having a composite resonator, e.g. a helix
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL283560X | 1949-05-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL71310C true NL71310C (en:Method) |
Family
ID=19782400
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL71310D NL71310C (en:Method) | 1949-05-13 | ||
| NL676700483A NL146431B (nl) | 1949-05-13 | Toetsenbord met toetsen van doorschijnend materiaal. |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL676700483A NL146431B (nl) | 1949-05-13 | Toetsenbord met toetsen van doorschijnend materiaal. |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US2659030A (en:Method) |
| BE (1) | BE495667A (en:Method) |
| CH (1) | CH283560A (en:Method) |
| DE (1) | DE820940C (en:Method) |
| FR (1) | FR1017426A (en:Method) |
| GB (1) | GB676914A (en:Method) |
| NL (2) | NL146431B (en:Method) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2313343A (en) * | 1996-05-20 | 1997-11-26 | Reuters Ltd | A keyboard having keycaps with transparent front faces |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE426053C (de) * | 1926-03-08 | Siemens & Halske Akt Ges | Entladungsroehre | |
| US1417912A (en) * | 1916-06-24 | 1922-05-30 | Hewitt Peter Cooper | Vacuum electric apparatus |
| GB344448A (en) * | 1929-12-03 | 1931-03-03 | Andre Gabriel Clavier | Improvements in or relating to thermionic oscillation generators |
| US2009369A (en) * | 1931-06-24 | 1935-07-23 | Rca Corp | Oscillation generation |
| DE663309C (de) * | 1934-10-30 | 1938-08-04 | Telefunken Gmbh | Kurzwellenroehre mit Kathode und konzentrisch dazu angeordneter einteiliger Anode |
| US2266411A (en) * | 1938-05-27 | 1941-12-16 | Int Standard Electric Corp | Electron tube |
| FR999345A (en:Method) * | 1946-11-20 | 1952-01-29 |
-
0
- NL NL71310D patent/NL71310C/xx active
- BE BE495667D patent/BE495667A/xx unknown
- NL NL676700483A patent/NL146431B/xx unknown
-
1950
- 1950-04-13 US US155575A patent/US2659030A/en not_active Expired - Lifetime
- 1950-05-10 GB GB11638/50A patent/GB676914A/en not_active Expired
- 1950-05-10 DE DEN860A patent/DE820940C/de not_active Expired
- 1950-05-11 FR FR1017426D patent/FR1017426A/fr not_active Expired
- 1950-05-11 CH CH283560D patent/CH283560A/de unknown
Also Published As
| Publication number | Publication date |
|---|---|
| NL146431B (nl) | |
| BE495667A (en:Method) | |
| GB676914A (en) | 1952-08-06 |
| CH283560A (de) | 1952-06-15 |
| US2659030A (en) | 1953-11-10 |
| FR1017426A (fr) | 1952-12-10 |
| DE820940C (de) | 1951-11-15 |