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发明名称
摘要
申请公布号
JPH04129517(U)
申请公布日期
1992.11.26
申请号
JP19910033159U
申请日期
1991.05.13
申请人
发明人
分类号
B21D28/14;B21D28/36;(IPC1-7):B21D28/14
主分类号
B21D28/14
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代理人
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