| 1 |
History of Electrical Engineering, http://en.wikipedia.org/wiki/History_of_electrical_engineering
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| 2 |
History of Chemical Engineering, http://en.wikipedia.org/wiki/History_of_chemical_engineering
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| 3 |
B. S. Yang, Y. W. Lee and S. J. Kim, 2000, Inter-vision Inc, Seoul, Korea, History of mechanical engineering (originally written by Miwashuzo).
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| 4 |
Origin of steel, http://www.Infosteel.net/1iron&steel.htm
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| 5 |
Dictionary of Catholic, http://www.Mariasarang.net/book/bbs_view.asp?index=maria2000_dictionary&page=1&no=2252&curRef=2252&curStep=0&curLevel=0&col=3&sort=1
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| 6 |
Reflexions sur la puissance motrice du feu et sur les machines propres développer cette puissance, http://en.wikipedia.org/wiki/Nicolas_L%C3%A9onard_Sadi_Carnot
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| 7 |
C. H. Lee, 2010, History of patent institution by countries, TTA Journal, no.128, pp.138-139.
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| 8 |
Dictionary of Scientific terms, Korea Science and Engineering Foundation, http://www.kofac.re.kr /main/jsp/MainCtrl. jsp?ACT_CD=MVW
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| 9 |
NAVER Korean dictionary, http://krdic.naver.com/search.nhn?query=%EB%AC%B4%EB%8C%80%EB%BD%80&autoConvert=false
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| 10 |
Steamship Great Britain, http://en.wikipedia.org/wiki/SS_Great_Britain
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| 11 |
Humiliation at Canossa, http://100.naver.com/100.nhn?docid=149817
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| 12 |
Calculation by writing, http://100.naver.com/100.nhn?docid=716251
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| 13 |
Italian War, http://100.naver.com/100.nhn?docid= 128482
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| 14 |
History of cannon, http://en.wikipedia.org/wiki/ History_of_cannon
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