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发明名称
Ferrous alloy
摘要
申请公布号
US2069423(A)
申请公布日期
1937.02.02
申请号
US19320596971
申请日期
1932.03.05
申请人
NATIONAL MALLEABLE AND STEEL CASTINGS COMPANY
发明人
SCHWARTZ HARRY A.
分类号
C22C37/04
主分类号
C22C37/04
代理机构
代理人
主权项
地址
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