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发明名称
摘要
申请公布号
JPH0259821(U)
申请公布日期
1990.05.01
申请号
JP19880136315U
申请日期
1988.10.19
申请人
发明人
分类号
B21D24/16;B21D19/08;B21D28/00;B21D28/34;(IPC1-7):B21D24/16
主分类号
B21D24/16
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