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发明名称
摘要
申请公布号
JPS4523320(Y1)
申请公布日期
1970.09.14
申请号
JP19670100660U
申请日期
1967.11.30
申请人
发明人
分类号
(IPC1-7):B21D5/01
主分类号
(IPC1-7):B21D5/01
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