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发明名称
Schwimmerfreier und bei Nichtgebrauch wasserfreier Abtrittspuelkasten
摘要
申请公布号
DE619900(C)
申请公布日期
1935.10.09
申请号
DENDATD063246D
申请日期
申请人
ERNST DREISSEN
发明人
分类号
E03D1/18
主分类号
E03D1/18
代理机构
代理人
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