BE407069A - - Google Patents
Info
- Publication number
- BE407069A BE407069A BE407069DA BE407069A BE 407069 A BE407069 A BE 407069A BE 407069D A BE407069D A BE 407069DA BE 407069 A BE407069 A BE 407069A
- 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 |
|---|---|---|---|
| US445593XA | 1933-12-29 | 1933-12-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE407069A true BE407069A (fr) | 1935-01-31 |
Family
ID=21933039
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE407069D BE407069A (fr) | 1933-12-29 | 1934-12-29 | |
| BE415337D BE415337A (fr) | 1933-12-29 | 1936-05-02 |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE415337D BE415337A (fr) | 1933-12-29 | 1936-05-02 |
Country Status (5)
| Country | Link |
|---|---|
| BE (2) | BE407069A (fr) |
| DE (2) | DE687263C (fr) |
| FR (4) | FR783344A (fr) |
| GB (4) | GB445593A (fr) |
| NL (2) | NL40906C (fr) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1004742B (de) * | 1952-12-12 | 1957-03-21 | Siemens Ag | Gittergesteuertes dampf- oder gasgefuelltes Entladungsgefaess |
| DE1100169B (de) * | 1957-05-20 | 1961-02-23 | Basic Products Corp | Transformatorvorrichtung zum starterlosen Zuenden und Betrieb von Metalldampfentladungslampen |
| US5451836A (en) * | 1993-07-29 | 1995-09-19 | Litton Systems, Inc. | Thyratron with annular keep-alive electrode |
-
1934
- 1934-12-27 FR FR783344D patent/FR783344A/fr not_active Expired
- 1934-12-29 NL NL71938A patent/NL40906C/xx active
- 1934-12-29 DE DE1934A0074933 patent/DE687263C/de not_active Expired
- 1934-12-29 BE BE407069D patent/BE407069A/xx unknown
- 1934-12-31 GB GB37395/34A patent/GB445593A/en not_active Expired
-
1936
- 1936-04-22 GB GB11499/36A patent/GB473666A/en not_active Expired
- 1936-04-23 FR FR47366D patent/FR47366E/fr not_active Expired
- 1936-05-02 BE BE415337D patent/BE415337A/xx unknown
-
1937
- 1937-10-19 NL NL84617A patent/NL48416C/xx active
- 1937-10-22 FR FR48941D patent/FR48941E/fr not_active Expired
- 1937-10-22 GB GB28892/37A patent/GB504783A/en not_active Expired
-
1938
- 1938-02-23 GB GB5757/38A patent/GB508602A/en not_active Expired
-
1939
- 1939-02-22 FR FR50245D patent/FR50245E/fr not_active Expired
- 1939-02-23 DE DEL97229D patent/DE736854C/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR50245E (fr) | 1940-01-20 |
| GB508602A (en) | 1939-07-04 |
| GB473666A (en) | 1937-10-18 |
| DE736854C (de) | 1943-06-30 |
| GB445593A (en) | 1936-04-15 |
| GB504783A (en) | 1939-04-24 |
| DE687263C (de) | 1940-01-26 |
| FR47366E (fr) | 1937-03-25 |
| NL48416C (fr) | 1939-12-15 |
| BE415337A (fr) | 1936-06-03 |
| FR48941E (fr) | 1938-09-21 |
| NL40906C (fr) | 1937-01-15 |
| FR783344A (fr) | 1935-07-11 |