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发明名称
摘要
申请公布号
JPS5950446(B2)
申请公布日期
1984.12.08
申请号
JP19770153759
申请日期
1977.12.21
申请人
HITACHI SEIKI KK
发明人
MURAKI SHINJI
分类号
B23B29/034
主分类号
B23B29/034
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