FR955341A - - Google Patents
Info
- Publication number
- FR955341A FR955341A FR955341DA FR955341A FR 955341 A FR955341 A FR 955341A FR 955341D A FR955341D A FR 955341DA FR 955341 A FR955341 A FR 955341A
- Authority
- FR
- France
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
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
- H01J37/02—Details
- H01J37/04—Arrangements of electrodes and associated parts for generating or controlling the discharge, e.g. electron-optical arrangement, ion-optical arrangement
- H01J37/10—Lenses
- H01J37/12—Lenses electrostatic
Landscapes
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Electron Beam Exposure (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US425143A US2347982A (en) | 1941-12-31 | 1941-12-31 | Electron lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR955341A true FR955341A (en) | 1950-01-14 |
Family
ID=23685345
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR955341D Expired FR955341A (en) | 1941-12-31 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US2347982A (en) |
| BE (1) | BE479146A (en) |
| FR (1) | FR955341A (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR935241A (en) * | 1946-10-18 | 1948-06-14 | Csf | Development of high voltage electrostatic electronic lenses |
| US2501882A (en) * | 1948-03-18 | 1950-03-28 | Research Corp | High-voltage high-vacuum acceleration tube |
| US2782214A (en) * | 1952-04-22 | 1957-02-19 | Baker Castor Oil Co | Oxidative alkaline fusion of sulfurcontaining organic compounds |
| US2925496A (en) * | 1954-10-20 | 1960-02-16 | Swift & Co | Apparatus for obtaining substantially uniform irradiation from a nonuni form source |
| NL225220A (en) * | 1957-02-25 | |||
| US3178578A (en) * | 1961-03-03 | 1965-04-13 | High Voltage Engineering Corp | Electron pulser for an x-ray tube to produce a pulsed beam of x-rays |
| WO1994006883A1 (en) * | 1992-09-21 | 1994-03-31 | Union Oil Company Of California | Solids-free, essentially all-oil wellbore fluid |
-
0
- BE BE479146D patent/BE479146A/xx unknown
- FR FR955341D patent/FR955341A/fr not_active Expired
-
1941
- 1941-12-31 US US425143A patent/US2347982A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| BE479146A (en) | |
| US2347982A (en) | 1944-05-02 |