BE487465A - - Google Patents
Info
- Publication number
- BE487465A BE487465A BE487465DA BE487465A BE 487465 A BE487465 A BE 487465A BE 487465D A BE487465D A BE 487465DA BE 487465 A BE487465 A BE 487465A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K1/00—Details
- H01K1/52—Means for obtaining or maintaining the desired pressure within the vessel
- H01K1/54—Means for absorbing or absorbing gas, or for preventing or removing efflorescence, e.g. by gettering
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K1/00—Details
- H01K1/26—Screens; Filters
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US9984A US2494916A (en) | 1948-02-21 | 1948-02-21 | Electric lamp with blackening collector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE487465A true BE487465A (pt) |
Family
ID=21740847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE487465D BE487465A (pt) | 1948-02-21 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2494916A (pt) |
| BE (1) | BE487465A (pt) |
| GB (1) | GB657220A (pt) |
| NL (2) | NL144929B (pt) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2812465A (en) * | 1954-05-10 | 1957-11-05 | Kenneth J Germeshausen | Gaseous-discharge device |
| US2931933A (en) * | 1958-03-28 | 1960-04-05 | Bell & Howell Co | Incandescent lamp |
| US3209192A (en) * | 1960-12-29 | 1965-09-28 | Westinghouse Electric Corp | Decorative electric lamp with specular coating |
| US3348094A (en) * | 1965-12-28 | 1967-10-17 | Sylvania Electric Prod | Projection lamp including a blackening control device |
| NL6607798A (pt) * | 1966-06-04 | 1967-12-05 | ||
| US4280076A (en) * | 1978-10-18 | 1981-07-21 | Duro-Test Corporation | Incandescent lamp with structure for collecting evaporated filament material |
| JP2004509437A (ja) * | 2000-09-14 | 2004-03-25 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | 蛍光ランプ及びその製造方法 |
| CN114352955A (zh) * | 2021-12-22 | 2022-04-15 | 杭州天都照明电器有限公司 | 用于led灯丝灯的芯柱、led灯丝灯、led灯和灯具 |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2183952A (en) * | 1938-05-13 | 1939-12-19 | Westinghouse Electric & Mfg Co | Fuse lead construction for electric lamps |
| US2208987A (en) * | 1938-05-24 | 1940-07-23 | Gen Electric | Electric incandescent lamp |
| US2379058A (en) * | 1943-04-06 | 1945-06-26 | Westinghouse Electric Corp | Lamp with means to improve lumen maintenance |
-
0
- NL NL80117D patent/NL80117C/xx active
- NL NL656510896A patent/NL144929B/xx unknown
- BE BE487465D patent/BE487465A/xx unknown
-
1948
- 1948-02-21 US US9984A patent/US2494916A/en not_active Expired - Lifetime
-
1949
- 1949-02-17 GB GB4381/49A patent/GB657220A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US2494916A (en) | 1950-01-17 |
| NL80117C (pt) | |
| NL144929B (nl) | |
| GB657220A (en) | 1951-09-12 |