BE454689A - - Google Patents
Info
- Publication number
- BE454689A BE454689A BE454689DA BE454689A BE 454689 A BE454689 A BE 454689A BE 454689D A BE454689D A BE 454689DA BE 454689 A BE454689 A BE 454689A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J17/00—Gas-filled discharge tubes with solid cathode
- H01J17/02—Details
- H01J17/04—Electrodes; Screens
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL244455X | 1943-03-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE454689A true BE454689A (https=) |
Family
ID=19780768
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE454689D BE454689A (https=) | 1943-03-06 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US2520218A (https=) |
| BE (1) | BE454689A (https=) |
| CH (1) | CH244455A (https=) |
| FR (1) | FR902426A (https=) |
| GB (1) | GB625283A (https=) |
| NL (1) | NL62445C (https=) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1714405A (en) * | 1923-07-30 | 1929-05-21 | Raytheon Inc | Electrical apparatus |
| US2011922A (en) * | 1931-02-25 | 1935-08-20 | Electrons Inc | Discharge tube |
| NL40381C (https=) * | 1932-03-03 | |||
| FR762953A (fr) * | 1932-10-27 | 1934-04-21 | Siemens Ag | Tube de décharge à vapeur ou gaz, à commande constante |
| US2189593A (en) * | 1936-10-01 | 1940-02-06 | Siemens & Halske Ag Siemenssta | Gas or vapor filled discharge tube |
-
0
- NL NL62445D patent/NL62445C/xx active
- BE BE454689D patent/BE454689A/xx unknown
-
1944
- 1944-03-04 FR FR902426D patent/FR902426A/fr not_active Expired
- 1944-05-23 CH CH244455D patent/CH244455A/de unknown
-
1946
- 1946-07-02 US US680891A patent/US2520218A/en not_active Expired - Lifetime
- 1946-09-20 GB GB28255/46A patent/GB625283A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR902426A (fr) | 1945-08-30 |
| GB625283A (en) | 1949-06-24 |
| CH244455A (de) | 1946-09-15 |
| US2520218A (en) | 1950-08-29 |
| NL62445C (https=) |