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
Application number
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Publication of NL238268A publication Critical patent/NL238268A/xx
Priority claimed from US734569A external-priority patent/US2973447A/en

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
NL238268D 1958-04-18 NL238268A (enrdf_load_html_response)

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 (enrdf_load_html_response)

Family

ID=27419131

Family Applications (1)

Application Number Title Priority Date Filing Date
NL238268D NL238268A (enrdf_load_html_response) 1958-04-18

Country Status (5)

Country Link
US (1) US2965789A (enrdf_load_html_response)
DE (1) DE1123047B (enrdf_load_html_response)
FR (2) FR75582E (enrdf_load_html_response)
GB (1) GB929618A (enrdf_load_html_response)
NL (1) NL238268A (enrdf_load_html_response)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
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 (enrdf_load_html_response) * 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
EP1550146A2 (en) * 2002-04-11 2005-07-06 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
US20070138965A1 (en) * 2002-10-04 2007-06-21 Koninklijke Philips Electronics N.V. Low-pressure mercury vapor discharge lamp

Family Cites Families (9)

* Cited by examiner, † Cited by third party
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
BE556306A (enrdf_load_html_response) * 1954-12-14

Also Published As

Publication number Publication date
FR75582E (fr) 1961-07-17
US2965789A (en) 1960-12-20
GB929618A (en) 1963-06-26
DE1123047B (de) 1962-02-01
FR75708E (fr) 1961-08-04

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