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发明名称
FILTERMATTE
摘要
申请公布号
DE2606921(A1)
申请公布日期
1977.08.25
申请号
DE19762606921
申请日期
1976.02.20
申请人
OLTMANNS,HEINRICH
发明人
RIPKEN,FRIEDRICH
分类号
E02B11/00;(IPC1-7):E02B3/14;D04H1/42
主分类号
E02B11/00
代理机构
代理人
主权项
地址
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