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摘要
申请公布号
JPS5680801(U)
申请公布日期
1981.06.30
申请号
JP19790157669U
申请日期
1979.11.13
申请人
发明人
分类号
B21B45/00;B21B1/00;(IPC1-7):B21B1/00
主分类号
B21B45/00
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