NL238268A - - Google Patents
Info
- Publication number
- NL238268A NL238268A NL238268DA NL238268A NL 238268 A NL238268 A NL 238268A NL 238268D A NL238268D A NL 238268DA NL 238268 A NL238268 A NL 238268A
- 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
- H01J61/30—Vessels; Containers
- H01J61/33—Special shape of cross-section, e.g. for producing cool spot
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US729425A US2965789A (en) | 1958-04-18 | 1958-04-18 | Vapor pressure control in discharge lamps |
| US73451158A | 1958-05-12 | 1958-05-12 | |
| US734569A US2973447A (en) | 1958-05-12 | 1958-05-12 | Grooved lamp vapor pressure control |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL238268A true NL238268A (xx) |
Family
ID=27419131
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL238268D NL238268A (xx) | 1958-04-18 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US2965789A (xx) |
| DE (1) | DE1123047B (xx) |
| FR (2) | FR75582E (xx) |
| GB (1) | GB929618A (xx) |
| NL (1) | NL238268A (xx) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3121183A (en) * | 1960-08-31 | 1964-02-11 | Duro Test Corp | Fluorescent lamp |
| US3331977A (en) * | 1965-03-15 | 1967-07-18 | Westinghouse Electric Corp | High output discharge lamp with vapor pressure control means |
| FR2108916B1 (xx) * | 1970-10-13 | 1973-11-30 | Gerland Ste Chimique | |
| JPS6276149A (ja) * | 1985-09-28 | 1987-04-08 | Toshiba Corp | けい光ランプ装置 |
| WO2003085695A2 (en) * | 2002-04-11 | 2003-10-16 | Koninklijke Philips Electronics N.V. | Low-pressure mercury vapor discharge lamp |
| CN100380568C (zh) * | 2002-04-11 | 2008-04-09 | 皇家飞利浦电子股份有限公司 | 低压汞蒸汽放电灯 |
| WO2003086789A1 (de) * | 2002-04-17 | 2003-10-23 | Continental Teves Ag & Co. Ohg | Verfahren zur erkennung von reifeneigenschaften |
| AU2003260931A1 (en) * | 2002-10-04 | 2004-04-23 | Koninklijke Philips Electronics N.V. | Low-pressure mercury vapour discharge lamp |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2020726A (en) * | 1932-10-01 | 1935-11-12 | Gen Electric | Gaseous electric discharge device |
| US2213245A (en) * | 1935-12-23 | 1940-09-03 | Germer Edmund | Electrical discharge device |
| FR802714A (fr) * | 1936-02-12 | 1936-09-14 | Perfectionnements aux tubes luminescents | |
| US2190009A (en) * | 1937-05-22 | 1940-02-13 | Boucher Inv S Ltd | Luminescent tube and system |
| FR861799A (fr) * | 1938-11-26 | 1941-02-17 | Lampes Sa | Perfectionnements aux dispositifs à décharge lumineuse |
| US2317265A (en) * | 1940-07-26 | 1943-04-20 | Foerste William | Fluorescent lamp |
| ES173962A1 (es) * | 1944-12-21 | 1946-07-16 | The General Electric Company Ltd | Una lámpara de descarga eléctrica |
| AT199750B (de) * | 1954-12-14 | 1958-09-25 | Gen Electric | Entladungslampe |
| NL105871C (xx) * | 1954-12-14 |
-
0
- NL NL238268D patent/NL238268A/xx unknown
-
1958
- 1958-04-18 US US729425A patent/US2965789A/en not_active Expired - Lifetime
-
1959
- 1959-04-01 GB GB11039/59A patent/GB929618A/en not_active Expired
- 1959-04-17 FR FR792378A patent/FR75582E/fr not_active Expired
- 1959-04-20 DE DEG26881A patent/DE1123047B/de active Pending
- 1959-05-06 FR FR794042A patent/FR75708E/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR75582E (fr) | 1961-07-17 |
| FR75708E (fr) | 1961-08-04 |
| DE1123047B (de) | 1962-02-01 |
| GB929618A (en) | 1963-06-26 |
| US2965789A (en) | 1960-12-20 |