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发明名称
Methods of introducing bismuth into steel or iron baths
摘要
申请公布号
US2493251(A)
申请公布日期
1950.01.03
申请号
US19470770755
申请日期
1947.08.26
申请人
HELLEFORS BRUKS AKTIEBOLAG
发明人
KIRSEBOM GUSTAF NEWTON
分类号
C21C7/00
主分类号
C21C7/00
代理机构
代理人
主权项
地址
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