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发明名称
摘要
申请公布号
JPS4713674(Y1)
申请公布日期
1972.05.18
申请号
JP19690109440U
申请日期
1969.11.18
申请人
发明人
分类号
(IPC1-7):B23B49/00
主分类号
(IPC1-7):B23B49/00
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