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发明名称
摘要
申请公布号
FR2100476(A5)
申请公布日期
1972.03.17
申请号
FR19710025211
申请日期
1971.07.09
申请人
DONALDSON CY INC
发明人
分类号
B07B7/08;(IPC1-7):B07B7/00
主分类号
B07B7/08
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