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发明名称
摘要
申请公布号
JPS505995(B1)
申请公布日期
1975.03.10
申请号
JP19700018677
申请日期
1970.03.06
申请人
发明人
分类号
B21B37/56;B21B37/00;(IPC1-7):B21B37/00
主分类号
B21B37/56
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代理人
主权项
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