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发明名称
摘要
申请公布号
NL6909659(A)
申请公布日期
1969.12.30
申请号
NL19690009659
申请日期
1969.06.24
申请人
发明人
分类号
C22B1/02;C21B13/00;C21B13/08;C21B13/14;C22B5/18;F27B7/36;(IPC1-7):C21B13/08
主分类号
C22B1/02
代理机构
代理人
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地址
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