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经营范围
发明名称
Improvements in or relating to molds for casting purposes
摘要
申请公布号
GB538512(A)
申请公布日期
1941.08.07
申请号
GB19390031724
申请日期
1939.12.07
申请人
ALUMINUM COMPANY OF AMERICA
发明人
分类号
B22D15/02
主分类号
B22D15/02
代理机构
代理人
主权项
地址
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