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发明名称
HYDRAULIC PACKER-BRIDGE
摘要
申请公布号
SU672328(A1)
申请公布日期
1979.07.05
申请号
SU19772474857
申请日期
1977.04.11
申请人
VNII BUROVOJ TEKHNIKI
发明人
TSYBIN ANATOLIJ A,SU;GAJVORONSKIJ ALBERT A,SU;TOT ZOLTAN,HU;ZHOKA ISHTVAN,HU;VZORODOV VLADIMIR A,SU
分类号
E21B33/12;(IPC1-7):E21B33/12
主分类号
E21B33/12
代理机构
代理人
主权项
地址
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