BE477661A - - Google Patents
Info
- Publication number
- BE477661A BE477661A BE477661DA BE477661A BE 477661 A BE477661 A BE 477661A BE 477661D A BE477661D A BE 477661DA BE 477661 A BE477661 A BE 477661A
- Authority
- BE
- Belgium
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
- H01J43/28—Vessels, e.g. wall of the tube; Windows; Screens; Suppressing undesired discharges or currents
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB260192X | 1939-02-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE477661A true BE477661A (https=) |
Family
ID=10237073
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE477661D BE477661A (https=) | 1939-02-03 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US2581460A (https=) |
| BE (1) | BE477661A (https=) |
| CH (1) | CH260192A (https=) |
| FR (1) | FR862597A (https=) |
| GB (1) | GB524658A (https=) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3647286A (en) * | 1969-02-10 | 1972-03-07 | John H Delorme Jr | Reproduction apparatus using photovoltaic material |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2027025A (en) * | 1932-12-31 | 1936-01-07 | Rca Corp | Photo-electric device |
| NL50859C (https=) * | 1937-03-30 | 1941-08-16 | ||
| NL50262C (https=) * | 1937-03-30 |
-
0
- BE BE477661D patent/BE477661A/xx unknown
-
1939
- 1939-02-03 GB GB3658/39A patent/GB524658A/en not_active Expired
- 1939-12-28 FR FR862597D patent/FR862597A/fr not_active Expired
-
1947
- 1947-04-09 CH CH260192D patent/CH260192A/de unknown
- 1947-08-07 US US767018A patent/US2581460A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| GB524658A (en) | 1940-08-12 |
| CH260192A (de) | 1949-02-28 |
| US2581460A (en) | 1952-01-08 |
| FR862597A (fr) | 1941-03-10 |