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发明名称
摘要
申请公布号
JPH0222224(U)
申请公布日期
1990.02.14
申请号
JP19880100261U
申请日期
1988.07.27
申请人
发明人
分类号
B21D24/00;B21D28/34;(IPC1-7):B21D28/34
主分类号
B21D24/00
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