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发明名称
Vorrichtung zur Regelung bzw. vollkommenen Unterbrechung der diametralen Schlammraumdurchstroemung bei Klaerbrunnen
摘要
申请公布号
DE507224(C)
申请公布日期
1930.09.13
申请号
DENDATW073191D
申请日期
申请人
DR. OTTO WEICKERT
发明人
分类号
C02F3/28
主分类号
C02F3/28
代理机构
代理人
主权项
地址
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