BE441281A - - Google Patents
Info
- Publication number
- BE441281A BE441281A BE441281DA BE441281A BE 441281 A BE441281 A BE 441281A BE 441281D A BE441281D A BE 441281DA BE 441281 A BE441281 A BE 441281A
- 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 |
|---|---|---|---|
| US314640A US2232816A (en) | 1940-01-19 | 1940-01-19 | Electric lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE441281A true BE441281A (https=) |
Family
ID=23220800
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE441281D BE441281A (https=) | 1940-01-19 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US2232816A (https=) |
| BE (1) | BE441281A (https=) |
| FR (1) | FR869370A (https=) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE490002A (https=) * | 1948-07-06 | |||
| US2624019A (en) * | 1950-03-31 | 1952-12-30 | Gen Electric | Electric lamp or similar article |
| US2859368A (en) * | 1951-10-20 | 1958-11-04 | Sylvania Electric Prod | Heat lamp |
| US3148296A (en) * | 1960-12-28 | 1964-09-08 | Gen Electric | Incandescent lamp |
| NL6607700A (https=) * | 1966-06-03 | 1967-12-04 | ||
| NL6607701A (https=) * | 1966-06-03 | 1967-12-04 | ||
| NL6607798A (https=) * | 1966-06-04 | 1967-12-05 | ||
| US3798485A (en) * | 1972-09-29 | 1974-03-19 | Gen Electric | Lamp apparatus for improving wall darkening characteristics |
| US4280076A (en) * | 1978-10-18 | 1981-07-21 | Duro-Test Corporation | Incandescent lamp with structure for collecting evaporated filament material |
| US7121900B2 (en) * | 2004-08-18 | 2006-10-17 | Osram Sylvania Inc. | Outgassing shield for lamp socket |
-
0
- BE BE441281D patent/BE441281A/xx unknown
-
1940
- 1940-01-19 US US314640A patent/US2232816A/en not_active Expired - Lifetime
-
1941
- 1941-01-18 FR FR869370D patent/FR869370A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US2232816A (en) | 1941-02-25 |
| FR869370A (fr) | 1942-01-30 |