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经营范围
发明名称
An improved aluminium alloy
摘要
申请公布号
GB494764(A)
申请公布日期
1938.11.01
申请号
GB19370012511
申请日期
1937.05.01
申请人
HORACE CAMPBELL HALL;ROLLS-ROYCE LIMITED
发明人
分类号
C22C21/12
主分类号
C22C21/12
代理机构
代理人
主权项
地址
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