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发明名称
摘要
申请公布号
JPH0641929(U)
申请公布日期
1994.06.03
申请号
JP19920043842U
申请日期
1992.06.24
申请人
发明人
分类号
B21D39/02;B21D51/00;F24F13/02;(IPC1-7):B21D39/02
主分类号
B21D39/02
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