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发明名称
摘要
申请公布号
FR2243779(B1)
申请公布日期
1977.05.27
申请号
FR19730035587
申请日期
1973.09.18
申请人
DUPONT INDUSTRIE S T
发明人
分类号
B23Q7/04;B23Q7/10;(IPC1-7):B23Q7/04
主分类号
B23Q7/04
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