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发明名称
New type of land melioration gate with hydraulic self-adjustment
摘要
申请公布号
PL206525(B1)
申请公布日期
2010.08.31
申请号
PL20040369473
申请日期
2004.08.09
申请人
INSTYTUT MELIORACJI I U&ZDOT,YTKOW ZIELONYCH
发明人
DRUPKA STANIS&LSTROK,AW
分类号
E02B13/02
主分类号
E02B13/02
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代理人
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