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发明名称
Improvements in cores for use in casting metals
摘要
申请公布号
GB326927(A)
申请公布日期
1930.03.27
申请号
GB19290002392
申请日期
1929.01.23
申请人
ARTHUR CHARLES WATERS
发明人
分类号
B22C1/16
主分类号
B22C1/16
代理机构
代理人
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