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发明名称
Foundry composition and method
摘要
申请公布号
US2237593(A)
申请公布日期
1941.04.08
申请号
US19400370421
申请日期
1940.12.16
申请人
PEERPATCO, INCORPORATED
发明人
DUNBECK NORMAN J.
分类号
B22C1/18
主分类号
B22C1/18
代理机构
代理人
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