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发明名称
Perfectionnements aux forets de perçage
摘要
申请公布号
FR973672(A)
申请公布日期
1951.02.13
申请号
FRD973672
申请日期
1941.11.05
申请人
发明人
MAHOUX GEORGES
分类号
B23B51/02;B23P15/32
主分类号
B23B51/02
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