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发明名称
Perfectionnements apportés aux dispositifs pour la décharge ou l'évacuation d'eaux souillées
摘要
申请公布号
FR856962(A)
申请公布日期
1940.08.19
申请号
FRD856962
申请日期
1939.06.27
申请人
发明人
GROENIGER
分类号
E03D11/13
主分类号
E03D11/13
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代理人
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