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发明名称
Improvements in or relating to the manufacture of metal articles or masses
摘要
申请公布号
GB530996(A)
申请公布日期
1940.12.27
申请号
GB19390019861
申请日期
1939.07.07
申请人
WILLIAM DAVID JONES
发明人
分类号
C22C1/02;C22C1/04
主分类号
C22C1/02
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