Zhang Jianhua
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Patents
一种高炉开铁口机用钻头
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Affilication of Author(s):机械工程学院
Type of Patent:实用新型
Application Number:201020145526.6
Number of Inventors:2
Service Invention or Not:no
Application Date:2010-03-31
Publication Date:2010-11-24
Authorization Date:2010-03-31
Publication Date:2010-11-24
Application Date:2010-03-31
Authorization Date:2010-03-31
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