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发明名称
Method of making castings with passages therein
摘要
申请公布号
US2211854(A)
申请公布日期
1940.08.20
申请号
US19380207902
申请日期
1938.05.14
申请人
THE AMERICAN METAL COMPANY, LIMITED
发明人
JOHNSON JAMES A.;GEIGEL KENWOOD
分类号
B22D19/00
主分类号
B22D19/00
代理机构
代理人
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