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发明名称
摘要
申请公布号
JPS4726457(Y1)
申请公布日期
1972.08.15
申请号
JP19680002491U
申请日期
1968.01.16
申请人
发明人
分类号
(IPC1-7):B26D7/18;B23D19/06;B23Q7/00
主分类号
(IPC1-7):B26D7/18
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