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发明名称
Improvements relating to metal casting processes
摘要
申请公布号
GB771316(A)
申请公布日期
1957.03.27
申请号
GB19540009649
申请日期
1954.04.01
申请人
ROLLS-ROYCE LIMITED
发明人
HANCOCK RALPH HAROLD
分类号
B22C9/04;B23B51/04
主分类号
B22C9/04
代理机构
代理人
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