NL40906C - - Google Patents
Info
- Publication number
- NL40906C NL40906C NL71938A NL71938A NL40906C NL 40906 C NL40906 C NL 40906C NL 71938 A NL71938 A NL 71938A NL 71938 A NL71938 A NL 71938A NL 40906 C NL40906 C NL 40906C
- Authority
- NL
- Netherlands
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 |
---|---|
NL40906C true NL40906C (en) | 1937-01-15 |
Family
ID=21933039
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL71938A NL40906C (en) | 1933-12-29 | 1934-12-29 | |
NL84617A NL48416C (en) | 1933-12-29 | 1937-10-19 |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL84617A NL48416C (en) | 1933-12-29 | 1937-10-19 |
Country Status (5)
Country | Link |
---|---|
BE (2) | BE407069A (en) |
DE (2) | DE687263C (en) |
FR (4) | FR783344A (en) |
GB (4) | GB445593A (en) |
NL (2) | NL40906C (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1004742B (en) * | 1952-12-12 | 1957-03-21 | Siemens Ag | Grid-controlled vapor or gas-filled discharge vessel |
DE1100169B (en) * | 1957-05-20 | 1961-02-23 | Basic Products Corp | Transformer device for starting and operating metal vapor discharge lamps without a starter |
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/en not_active Expired
- 1934-12-29 NL NL71938A patent/NL40906C/xx active
- 1934-12-29 BE BE407069D patent/BE407069A/xx unknown
- 1934-12-29 DE DE1934A0074933 patent/DE687263C/en not_active Expired
- 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/en 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 GB GB28892/37A patent/GB504783A/en not_active Expired
- 1937-10-22 FR FR48941D patent/FR48941E/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/en not_active Expired
- 1939-02-23 DE DEL97229D patent/DE736854C/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
NL48416C (en) | 1939-12-15 |
FR48941E (en) | 1938-09-21 |
DE736854C (en) | 1943-06-30 |
GB504783A (en) | 1939-04-24 |
GB445593A (en) | 1936-04-15 |
FR47366E (en) | 1937-03-25 |
FR50245E (en) | 1940-01-20 |
BE407069A (en) | 1935-01-31 |
BE415337A (en) | 1936-06-03 |
FR783344A (en) | 1935-07-11 |
DE687263C (en) | 1940-01-26 |
GB508602A (en) | 1939-07-04 |
GB473666A (en) | 1937-10-18 |