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摘要
申请公布号
LU61696(A1)
申请公布日期
1971.01.18
申请号
LUD61696
申请日期
1970.09.16
申请人
发明人
分类号
B26F1/00;B21D22/10;B21D28/02;B21D47/00;B26B19/14;B26B19/38
主分类号
B26F1/00
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