FR2114744A5 - - Google Patents
Info
- Publication number
- FR2114744A5 FR2114744A5 FR7140941A FR7140941A FR2114744A5 FR 2114744 A5 FR2114744 A5 FR 2114744A5 FR 7140941 A FR7140941 A FR 7140941A FR 7140941 A FR7140941 A FR 7140941A FR 2114744 A5 FR2114744 A5 FR 2114744A5
- 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
- H01J43/00—Secondary-emission tubes; Electron-multiplier tubes
- H01J43/04—Electron multipliers
- H01J43/06—Electrode arrangements
- H01J43/18—Electrode arrangements using essentially more than one dynode
- H01J43/24—Dynodes having potential gradient along their surfaces
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB5481770 | 1970-11-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2114744A5 true FR2114744A5 (en) | 1972-06-30 |
Family
ID=10472163
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7140941A Expired FR2114744A5 (en) | 1970-11-18 | 1971-11-16 |
Country Status (4)
Country | Link |
---|---|
US (1) | US3781979A (en) |
DE (1) | DE2156546A1 (en) |
FR (1) | FR2114744A5 (en) |
GB (1) | GB1319850A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6681648B1 (en) * | 2001-04-04 | 2004-01-27 | The Regents Of The University Of California | Meniscus membranes for separations |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA788057A (en) * | 1968-06-18 | Adams John | Image intensifier | |
CA617300A (en) * | 1956-12-26 | 1961-03-28 | Wargo Peter | Long-life rugged storage structure for electronic tubes |
US3005125A (en) * | 1957-12-05 | 1961-10-17 | Sylvania Electric Prod | Display screen |
US3197662A (en) * | 1960-03-11 | 1965-07-27 | Westinghouse Electric Corp | Transmissive spongy secondary emitter |
US3243642A (en) * | 1962-10-30 | 1966-03-29 | Radames K H Gebel | Image intensifier |
GB1090406A (en) * | 1963-08-19 | 1967-11-08 | Mullard Ltd | Improvements in or relating to image intensifiers and the like |
US3319318A (en) * | 1964-02-24 | 1967-05-16 | Stanford Research Inst | Thin gas tight window assembly |
US3562894A (en) * | 1967-06-21 | 1971-02-16 | Weston Instruments Inc | Method of making electron multiplier wafer |
GB1175599A (en) * | 1967-11-28 | 1969-12-23 | Mullard Ltd | Improvements in or relating to Image Intensifiers and the like |
GB1216497A (en) * | 1968-06-18 | 1970-12-23 | Mullard Ltd | Improvements in or relating to electron multiplier and like devices |
-
1970
- 1970-11-18 GB GB5481770A patent/GB1319850A/en not_active Expired
-
1971
- 1971-11-08 US US00196289A patent/US3781979A/en not_active Expired - Lifetime
- 1971-11-15 DE DE19712156546 patent/DE2156546A1/en active Pending
- 1971-11-16 FR FR7140941A patent/FR2114744A5/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US3781979A (en) | 1974-01-01 |
GB1319850A (en) | 1973-06-13 |
DE2156546A1 (en) | 1972-05-31 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |