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发明名称
摘要
申请公布号
FR2061093(A5)
申请公布日期
1971.06.18
申请号
FR19700032562
申请日期
1970.09.08
申请人
ESSO RESEARCH
发明人
分类号
B22F1/00;C21B13/00;(IPC1-7):23F9/00
主分类号
B22F1/00
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