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发明名称
摘要
申请公布号
JPS624334(Y2)
申请公布日期
1987.01.31
申请号
JP19830108221U
申请日期
1983.07.14
申请人
发明人
分类号
B21B31/12;B21B31/08;B21C37/08;B21D3/02;B21D3/05;B21D5/08;B21D5/12;(IPC1-7):B21D5/08
主分类号
B21B31/12
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代理人
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地址
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