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发明名称
摘要
申请公布号
JPH0239607(Y2)
申请公布日期
1990.10.24
申请号
JP19840014034U
申请日期
1984.02.06
申请人
发明人
分类号
B21D1/05;B21D7/00;(IPC1-7):B21D1/05
主分类号
B21D1/05
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代理人
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