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发明名称
Unterirdische, aus duennwandigen Rohrstuecken bestehende Rohrleitung fuer Beregnungsanlagen
摘要
申请公布号
DE967249(C)
申请公布日期
1957.10.24
申请号
DE1939P001757D
申请日期
1939.08.30
申请人
HEINRICH PERROT
发明人
PERROT HEINRICH
分类号
A01G25/06;F16L21/06;F16L21/08
主分类号
A01G25/06
代理机构
代理人
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