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发明名称
摘要
申请公布号
NL6713605(A)
申请公布日期
1968.04.08
申请号
NL19670013605
申请日期
1967.10.06
申请人
发明人
分类号
B21B43/08;B21B43/10;(IPC1-7):B21B/
主分类号
B21B43/08
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代理人
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