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发明名称
摘要
申请公布号
JPS54170486(U)
申请公布日期
1979.12.01
申请号
JP19780070186U
申请日期
1978.05.23
申请人
发明人
分类号
B21D43/00;(IPC1-7):B21D43/00
主分类号
B21D43/00
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代理人
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地址
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