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经营范围
发明名称
Improvements in and relating to casting moulds
摘要
申请公布号
GB907949(A)
申请公布日期
1962.10.10
申请号
GB19600018684
申请日期
1960.05.26
申请人
WILLIAM OLAF FREDRIKSEN
发明人
分类号
B22C9/20
主分类号
B22C9/20
代理机构
代理人
主权项
地址
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