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发明名称
摘要
申请公布号
DE2145753(A1)
申请公布日期
1972.03.16
申请号
DE19712145753
申请日期
1971.09.13
申请人
发明人
分类号
D01F9/22;D06M11/34;(IPC1-7):D01F7/00
主分类号
D01F9/22
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