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发明名称
摘要
申请公布号
NL6604377(A)
申请公布日期
1967.10.02
申请号
NL19660004377
申请日期
1966.04.01
申请人
发明人
分类号
B21C37/15;E04G11/56
主分类号
B21C37/15
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代理人
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