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发明名称
DEVICE FOR WRAPPING DRAIN-PIPE
摘要
申请公布号
SU857370(A2)
申请公布日期
1981.08.23
申请号
SU19792789020
申请日期
1979.07.04
申请人
VNII PO PRIMENENIYU POLIMERNYKH MATERIALOV V MELIORATSII VODNOM KHOZYAJSTVE
发明人
KOCHANOV VALENTIN G,SU;BEJLIN DAVID KH,SU
分类号
E02F5/10;(IPC1-7):E02F5/10
主分类号
E02F5/10
代理机构
代理人
主权项
地址
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