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发明名称
摘要
申请公布号
JPH0222092(Y2)
申请公布日期
1990.06.14
申请号
JP19840162282U
申请日期
1984.10.29
申请人
发明人
分类号
B21D24/00;B21D22/22;B21D24/02;B21D28/34;B21D37/01;B21D37/02;B21D37/04;B21D37/14;(IPC1-7):B21D37/04
主分类号
B21D24/00
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代理人
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