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发明名称
摘要
申请公布号
JPH0785817(B2)
申请公布日期
1995.09.20
申请号
JP19910344230
申请日期
1991.12.26
申请人
发明人
分类号
B21D26/033;B21D26/045;B21D39/04;B21D39/08;(IPC1-7):B21D39/08;B21D26/02
主分类号
B21D26/033
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代理人
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