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发明名称
摘要
申请公布号
NL7108227(A)
申请公布日期
1971.12.17
申请号
NL19710008227
申请日期
1971.06.15
申请人
发明人
分类号
B23H1/02;H02H7/00;(IPC1-7):B23P1/02
主分类号
B23H1/02
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