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发明名称
Dump drainage
摘要
According to the invention, drainage pipes are protected against clogging with the aid of compressed-air blasts.
申请公布号
DE3744633(A1)
申请公布日期
1989.07.13
申请号
DE19873744633
申请日期
1987.12.31
申请人
NIEDERBERG-CHEMIE GMBH
发明人
SCHLUETTER,ALOYS;KAEWERT,KLAUS
分类号
B08B9/02;B09B1/00
主分类号
B08B9/02
代理机构
代理人
主权项
地址
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