BE479996A - - Google Patents
Info
- Publication number
- BE479996A BE479996A BE479996DA BE479996A BE 479996 A BE479996 A BE 479996A BE 479996D A BE479996D A BE 479996DA BE 479996 A BE479996 A BE 479996A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
- H01J37/26—Electron or ion microscopes; Electron or ion diffraction tubes
- H01J37/27—Shadow microscopy
Landscapes
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
- Electron Sources, Ion Sources (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US522875A US2422041A (en) | 1944-02-18 | 1944-02-18 | Electron microscope |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE479996A true BE479996A (https=) |
Family
ID=24082724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE479996D BE479996A (https=) | 1944-02-18 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2422041A (https=) |
| BE (1) | BE479996A (https=) |
| FR (1) | FR977856A (https=) |
| GB (1) | GB637361A (https=) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2813991A (en) * | 1952-11-05 | 1957-11-19 | Gen Electric | Electron emitting electrode |
| US5654548A (en) * | 1992-08-06 | 1997-08-05 | International Business Machines Corporation | Source for intense coherent electron pulses |
| US5376792A (en) * | 1993-04-26 | 1994-12-27 | Rj Lee Group, Inc. | Scanning electron microscope |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2249453A (en) * | 1938-12-02 | 1941-07-15 | Gen Electric | Electron microscope |
| CH219289A (de) * | 1939-07-22 | 1942-01-31 | Fides Gmbh | Elektronenmikroskop. |
| CA432875A (en) * | 1939-07-29 | 1946-01-29 | Radio Corporation Of America | Electron microscope |
| US2363359A (en) * | 1941-05-01 | 1944-11-21 | Gen Electric | Electron microscope |
-
0
- BE BE479996D patent/BE479996A/xx unknown
-
1944
- 1944-02-18 US US522875A patent/US2422041A/en not_active Expired - Lifetime
-
1945
- 1945-02-14 GB GB3668/45A patent/GB637361A/en not_active Expired
-
1947
- 1947-12-22 FR FR977856D patent/FR977856A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US2422041A (en) | 1947-06-10 |
| FR977856A (fr) | 1951-04-06 |
| GB637361A (en) | 1950-05-17 |