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发明名称
摘要
申请公布号
LU53934(A1)
申请公布日期
1967.08.21
申请号
LU19670053934
申请日期
1967.06.21
申请人
发明人
分类号
B21D51/32;B23B5/14;B23D21/00;B23D21/04;B67B7/70;G21C19/34;G21F7/06
主分类号
B21D51/32
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代理人
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地址
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