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发明名称
VORRICHTUNG UND METHODE ZUR VERBESSERUNG DES RÜCKSPÜLENS MIT GAS IN SEITLICHEN UNTERDRAINAGESYSTEMEN
摘要
申请公布号
DE69414006(T2)
申请公布日期
1999.03.25
申请号
DE19946014006T
申请日期
1994.05.12
申请人
THE F.B. LEOPOLD CO., INC., ZELIENOPLE, PA., US
发明人
BROWN, MARVIN, A., SEWICKLEY, PA 15143, US;BERGMANN, EUGEN, O., EVANS CITY, PA 16033, US;HSIEH, RICHARD, ZELIENOPLE, PA 16063, US
分类号
B01D24/38;B01D24/24;B01D24/46;B01D29/88;(IPC1-7):B01D24/22
主分类号
B01D24/38
代理机构
代理人
主权项
地址
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