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发明名称
摘要
申请公布号
JPS472458(Y1)
申请公布日期
1972.01.27
申请号
JP19680049281U
申请日期
1968.06.13
申请人
发明人
分类号
(IPC1-7):B23P21/00
主分类号
(IPC1-7):B23P21/00
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