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发明名称
摘要
申请公布号
JP2558928(Y2)
申请公布日期
1998.01.14
申请号
JP19910096588U
申请日期
1991.11.26
申请人
发明人
分类号
B21D5/02;(IPC1-7):B21D5/02
主分类号
B21D5/02
代理机构
代理人
主权项
地址
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