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发明名称
摘要
申请公布号
JPS55461(B2)
申请公布日期
1980.01.08
申请号
JP19710089586
申请日期
1971.11.09
申请人
发明人
分类号
C22C19/05;C22C30/00;C22C38/00;C22C38/18;G01K7/02;(IPC1-7):C22C38/18
主分类号
C22C19/05
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代理人
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