NL59720C - - Google Patents
Info
- Publication number
- NL59720C NL59720C NL59720DA NL59720C NL 59720 C NL59720 C NL 59720C NL 59720D A NL59720D A NL 59720DA NL 59720 C NL59720 C NL 59720C
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/56—One or more circuit elements structurally associated with the lamp
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S315/00—Electric lamp and discharge devices: systems
- Y10S315/02—High frequency starting operation for fluorescent lamp
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL240681X | 1942-06-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL59720C true NL59720C (da) |
Family
ID=19780516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL59720D NL59720C (da) | 1942-06-16 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US2438579A (da) |
| CH (1) | CH240681A (da) |
| FR (1) | FR895531A (da) |
| GB (1) | GB617112A (da) |
| NL (1) | NL59720C (da) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB8326980D0 (en) * | 1983-10-08 | 1983-11-09 | Emi Plc Thorn | Reducing end darkening in fluorescent lamps |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1877932A (en) * | 1926-12-10 | 1932-09-20 | Electrons Inc | Electric lamp |
| US2053879A (en) * | 1929-05-04 | 1936-09-08 | Hans J Spanner | Discharge tube |
| NL58257C (da) * | 1941-03-28 | |||
| US2295657A (en) * | 1941-05-24 | 1942-09-15 | Bryant Electric Co | Fluorescent lamp starter unit |
| FR961336A (da) * | 1942-04-21 | 1950-05-10 |
-
0
- NL NL59720D patent/NL59720C/xx active
-
1943
- 1943-06-15 CH CH240681D patent/CH240681A/de unknown
- 1943-06-15 FR FR895531D patent/FR895531A/fr not_active Expired
-
1946
- 1946-03-30 US US658408A patent/US2438579A/en not_active Expired - Lifetime
- 1946-07-16 GB GB21223/46A patent/GB617112A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CH240681A (de) | 1946-01-15 |
| US2438579A (en) | 1948-03-30 |
| GB617112A (en) | 1949-02-01 |
| FR895531A (fr) | 1945-01-26 |