BE501021A - - Google Patents
Info
- Publication number
- BE501021A BE501021A BE501021DA BE501021A BE 501021 A BE501021 A BE 501021A BE 501021D A BE501021D A BE 501021DA BE 501021 A BE501021 A BE 501021A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/96—Lamps with light-emitting discharge path and separately-heated incandescent body within a common envelope, e.g. for simulating daylight
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US208721A US2669676A (en) | 1951-01-31 | 1951-01-31 | Electric lamp for mixed light |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE501021A true BE501021A (US06724976-20040420-M00002.png) |
Family
ID=22775754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE501021D BE501021A (US06724976-20040420-M00002.png) | 1951-01-31 |
Country Status (5)
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3110833A (en) * | 1961-02-21 | 1963-11-12 | Westinghouse Electric Corp | Multiple envelope high pressure mercury vapor discharge lamp |
| US4208603A (en) * | 1979-02-08 | 1980-06-17 | General Electric Company | Electric lamp having improved inlead construction |
| AU2002214567A1 (en) * | 2000-10-04 | 2002-04-15 | Theodore Mcbain | Independent dual-function light bulb |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2163428A (en) * | 1931-07-21 | 1939-06-20 | Gen Electric | Enclosed arc lamp |
| US1956599A (en) * | 1932-02-13 | 1934-05-01 | Sperti Lamp Corp | Lamp |
| US2020737A (en) * | 1932-12-24 | 1935-11-12 | Gen Electric | Gaseous electric discharge arc lamp |
| GB484328A (en) * | 1936-12-18 | 1938-05-04 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | Improvements in combinations of metal vapour electric discharge devices, adapted to emit radiation, and electric incandescent lamps |
| BE428407A (US06724976-20040420-M00002.png) * | 1937-06-04 | |||
| US2265396A (en) * | 1937-09-18 | 1941-12-09 | Gen Electric | Gaseous electric discharge device |
| US2277876A (en) * | 1938-11-09 | 1942-03-31 | Michel E Macksoud | Electric lamp |
| US2275768A (en) * | 1939-06-17 | 1942-03-10 | Gen Electric | Electric lamp |
-
0
- BE BE501021D patent/BE501021A/xx unknown
- NL NL7018225.A patent/NL158929B/xx unknown
-
1950
- 1950-02-02 CH CH303446D patent/CH303446A/de unknown
-
1951
- 1951-01-31 US US208721A patent/US2669676A/en not_active Expired - Lifetime
- 1951-02-02 FR FR1035657D patent/FR1035657A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CH303446A (de) | 1954-11-30 |
| US2669676A (en) | 1954-02-16 |
| NL158929B (nl) | |
| FR1035657A (fr) | 1953-08-27 |
