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发明名称
摘要
申请公布号
JPH0244885(Y2)
申请公布日期
1990.11.28
申请号
JP19860103162U
申请日期
1986.07.07
申请人
发明人
分类号
B21D5/02;(IPC1-7):B21D5/02
主分类号
B21D5/02
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代理人
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