BE426216A - - Google Patents
Info
- Publication number
- BE426216A BE426216A BE426216DA BE426216A BE 426216 A BE426216 A BE 426216A BE 426216D A BE426216D A BE 426216DA BE 426216 A BE426216 A BE 426216A
- 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
- H01J17/50—Thermionic-cathode tubes
- H01J17/52—Thermionic-cathode tubes with one cathode and one anode
- H01J17/54—Thermionic-cathode tubes with one cathode and one anode having one or more control electrodes
- H01J17/56—Thermionic-cathode tubes with one cathode and one anode having one or more control electrodes for preventing and then permitting ignition, but thereafter having no control
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEN40353D DE730148C (de) | 1937-02-09 | 1937-02-09 | Ionenrelaisroehre |
Publications (1)
Publication Number | Publication Date |
---|---|
BE426216A true BE426216A (xx) | 1938-03-31 |
Family
ID=25759287
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE426216D BE426216A (xx) | 1937-02-09 | 1938-02-05 |
Country Status (7)
Country | Link |
---|---|
US (1) | US2220089A (xx) |
BE (1) | BE426216A (xx) |
CH (1) | CH202955A (xx) |
DE (1) | DE730148C (xx) |
FR (1) | FR833343A (xx) |
GB (1) | GB500459A (xx) |
NL (1) | NL51718C (xx) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2975319A (en) * | 1951-03-06 | 1961-03-14 | Tesla Np | Tacttron |
-
1937
- 1937-02-09 DE DEN40353D patent/DE730148C/de not_active Expired
-
1938
- 1938-02-04 US US188765A patent/US2220089A/en not_active Expired - Lifetime
- 1938-02-05 GB GB3712/38A patent/GB500459A/en not_active Expired
- 1938-02-05 BE BE426216D patent/BE426216A/xx unknown
- 1938-02-07 CH CH202955D patent/CH202955A/de unknown
- 1938-02-07 NL NL86324A patent/NL51718C/xx active
- 1938-02-07 FR FR833343D patent/FR833343A/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE730148C (de) | 1943-01-07 |
CH202955A (de) | 1939-02-15 |
FR833343A (fr) | 1938-10-19 |
GB500459A (en) | 1939-02-09 |
US2220089A (en) | 1940-11-05 |
NL51718C (xx) | 1941-12-15 |