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发明名称
Improvements relating to casting molds for making metal castings
摘要
申请公布号
GB590733(A)
申请公布日期
1947.07.28
申请号
GB19440022230
申请日期
1944.11.10
申请人
CASTINGS PATENT CORPORATION
发明人
分类号
B22C9/20
主分类号
B22C9/20
代理机构
代理人
主权项
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