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发明名称
Manufacture of metal articles
摘要
申请公布号
US2191475(A)
申请公布日期
1940.02.27
申请号
US19380187104
申请日期
1938.01.27
申请人
M. W. KELLOGG CO.
发明人
HOPKINS ROBERT K.
分类号
B22D27/02;C22B9/18
主分类号
B22D27/02
代理机构
代理人
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