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发明名称
METHOD OF PROTECTING FILLING PIPELINE FROM OBSTRUCTION
摘要
申请公布号
SU756047(A1)
申请公布日期
1980.08.15
申请号
SU19782624315
申请日期
1978.06.06
申请人
KAZAKHSKIJ POLT I IM.V.I.LENINA
发明人
BAJKONUROV OMIRKHAN A,SU;MELNIKOV VIKTOR A,SU
分类号
E21F15/08;(IPC1-7):E21F15/08
主分类号
E21F15/08
代理机构
代理人
主权项
地址
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