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发明名称
DITCHLESS DRAINLAYER
摘要
申请公布号
GB2029182(B)
申请公布日期
1982.09.02
申请号
GB19780036382
申请日期
1978.09.11
申请人
VSES NI INST ZEMLEROI MASHINOSTR OBIEDINE
发明人
分类号
E02B11/02;E02F5/10;E02F5/14;(IPC1-7):E02B11/02
主分类号
E02B11/02
代理机构
代理人
主权项
地址
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