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发明名称
摘要
申请公布号
JPH0615824(U)
申请公布日期
1994.03.01
申请号
JP19920053964U
申请日期
1992.07.31
申请人
发明人
分类号
B21D28/34;(IPC1-7):B21D28/34
主分类号
B21D28/34
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代理人
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地址
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