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发明名称
Ring, vacuum sewage system
摘要
申请公布号
PL393390(A1)
申请公布日期
2012.07.02
申请号
PL20100393390
申请日期
2010.12.21
申请人
POLITECHNIKA WARSZAWSKA
发明人
OLSZEWSKI WITOLD
分类号
E03F1/00
主分类号
E03F1/00
代理机构
代理人
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