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发明名称
METHOD FOR PREVENTING PROTECTIVE AND FILTERING MATERIAL OF DRAIN PIPE AGAINST CLOGGING
摘要
申请公布号
SU1657573(A1)
申请公布日期
1991.06.23
申请号
SU19884610013
申请日期
1988.10.27
申请人
TURKMENSK NII GIDROTEKH
发明人
GALIFANOV GENNADIJ G,SU;DZHUMAGELDYEV DZHORAKULI,SU
分类号
E02B11/00
主分类号
E02B11/00
代理机构
代理人
主权项
地址
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