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发明名称
Metallic composition
摘要
申请公布号
US1986197(A)
申请公布日期
1935.01.01
申请号
US19320597921
申请日期
1932.03.10
申请人
THE HARSHAW CHEMICAL COMPANY
发明人
HARSHAW WILLIAM J.
分类号
B22F1/02;C25D7/00
主分类号
B22F1/02
代理机构
代理人
主权项
地址
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