NL72993C - - Google Patents
Info
- Publication number
- NL72993C NL72993C NL72993DA NL72993C NL 72993 C NL72993 C NL 72993C NL 72993D A NL72993D A NL 72993DA NL 72993 C NL72993 C NL 72993C
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
- H01J29/46—Arrangements of electrodes and associated parts for generating or controlling the ray or beam, e.g. electron-optical arrangement
- H01J29/58—Arrangements for focusing or reflecting ray or beam
- H01J29/64—Magnetic lenses
- H01J29/66—Magnetic lenses using electromagnetic means only
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Electron Beam Exposure (AREA)
- Video Image Reproduction Devices For Color Tv Systems (AREA)
- Particle Accelerators (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB21026/48A GB686527A (en) | 1948-08-10 | 1948-08-10 | Improvements in or relating to focussing coils for electron beams |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL72993C true NL72993C (pt) |
Family
ID=10155936
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL656509700A NL148036B (nl) | 1948-08-10 | Werkwijze voor het bereiden van vinylfluoride uit ethyn en fluorwaterstof. | |
| NL72993D NL72993C (pt) | 1948-08-10 |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL656509700A NL148036B (nl) | 1948-08-10 | Werkwijze voor het bereiden van vinylfluoride uit ethyn en fluorwaterstof. |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US2550592A (pt) |
| DE (1) | DE812327C (pt) |
| FR (1) | FR992387A (pt) |
| GB (1) | GB686527A (pt) |
| NL (2) | NL72993C (pt) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL73510C (pt) * | 1949-10-04 | |||
| US3163839A (en) * | 1953-12-30 | 1964-12-29 | Sylvania Electric Prod | Electromagnetic coils |
| BE534604A (pt) * | 1954-01-15 | |||
| US3068433A (en) * | 1954-04-15 | 1962-12-11 | Sylvania Electric Prod | Electromagnetic coils |
| US2763805A (en) * | 1954-06-29 | 1956-09-18 | Rca Corp | Electromagnetic focus coil for cathode ray tube |
| US2897397A (en) * | 1955-04-21 | 1959-07-28 | Sylvania Electric Prod | Traveling wave tube |
| US3015152A (en) * | 1955-08-23 | 1962-01-02 | Hazeltine Research Inc | Process of manufacturing magnetic deflection yokes |
| US3270401A (en) * | 1957-01-07 | 1966-09-06 | Reynolds Metals Co | Method and apparatus for producing insulated electrical conductor |
| US2977556A (en) * | 1957-03-15 | 1961-03-28 | Gen Electric | Electrical coil |
| US2949593A (en) * | 1957-05-09 | 1960-08-16 | Reynolds Metals Co | Electrical coil formed from multilayer strip conductor |
| US3142786A (en) * | 1960-12-09 | 1964-07-28 | Tsukamoto Kenkichi | Miniaturized aluminum movable coil |
| US3497745A (en) * | 1967-02-20 | 1970-02-24 | Zenith Radio Corp | Alignment magnet for cathode-ray tube |
| DE19632963C1 (de) * | 1996-08-16 | 1997-12-18 | Schmersal K A Gmbh & Co | Sicherheitsschalteinrichtung |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2131536A (en) * | 1932-03-16 | 1938-09-27 | Knoll Max | Electron microscope |
| GB478083A (en) * | 1936-10-05 | 1938-01-12 | Ferranti Ltd | Improvements in or relating to cathode-ray tubes |
| GB504802A (en) * | 1937-11-01 | 1939-05-01 | Frederick Hermes Nicoll | Improvements in or relating to permanent magnet devices for producing axially symmetrical magnetic fields |
| DE973258C (de) * | 1938-03-08 | 1959-12-31 | Siemens Ag | Magnetische Polschuhlinse kleiner Brennweite fuer elektronenoptische Vergroesserungen in Elektronenmikroskopen |
| US2264274A (en) * | 1939-04-04 | 1941-12-02 | Emi Ltd | Cathode ray tube |
| US2356535A (en) * | 1940-08-31 | 1944-08-22 | Ruska Ernst | Electronic lens |
-
0
- NL NL656509700A patent/NL148036B/xx unknown
- NL NL72993D patent/NL72993C/xx active
-
1948
- 1948-08-10 GB GB21026/48A patent/GB686527A/en not_active Expired
-
1949
- 1949-08-10 FR FR992387D patent/FR992387A/fr not_active Expired
- 1949-08-10 DE DEP51570A patent/DE812327C/de not_active Expired
- 1949-08-18 US US111007A patent/US2550592A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| NL148036B (nl) | |
| DE812327C (de) | 1951-08-27 |
| FR992387A (fr) | 1951-10-17 |
| US2550592A (en) | 1951-04-24 |
| GB686527A (en) | 1953-01-28 |