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Subject Item
dbpedia:Peter_Cooper_Hewitt
rdfs:comment
Peter Cooper Hewitt (May 5, 1861 – August 25, 1921) was an American electrical engineer and inventor, who invented the first mercury-vapor lamp in 1901. Hewitt was issued U.S. Patent 682,692 on September 17, 1901. In 1903, Hewitt created an improved version that possessed higher colour qualities which eventually found widespread industrial use.
foaf:name
Peter Cooper Hewitt Hewitt, Peter Cooper
foaf:depiction
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dc:description
American electrical engineer
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dbpedia:Columbia_School_of_Engineering_and_Applied_Science
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dbpedia:Elliott_Cresson_Medal
dbpedia-owl:birthDate
1861-05-05Z
dbpedia-owl:birthPlace
dbpedia:New_York_City dbpedia:New_York dbpedia:United_States
dbpedia-owl:birthYear
1861-01-01Z
dbpedia-owl:deathDate
1921-08-25Z
dbpedia-owl:deathPlace
dbpedia:France dbpedia:Paris
dbpedia-owl:deathYear
1921-01-01Z
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dbpedia:Arc_lamp dbpedia:Mercury-arc_valve
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dbpedia:United_States
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