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发明名称
VERSCHLUSSMITTEL FUER KANALOEFFNUNGEN
摘要
申请公布号
DD255574(A1)
申请公布日期
1988.04.06
申请号
DD19860294046
申请日期
1986.09.01
申请人
VEB INDUSTRIEWERKE KARL-MARX-STADT,DD
发明人
HELLE,KONRAD,DD
分类号
F16J13/00;(IPC1-7):F16J13/00
主分类号
F16J13/00
代理机构
代理人
主权项
地址
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