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发明名称
CEMENTING PLUG
摘要
申请公布号
SU1562429(A1)
申请公布日期
1990.05.07
申请号
SU19884419825
申请日期
1988.02.22
申请人
IVANO-FRANKOVSKIJ I NEFTI GAZA
发明人
KOTSKULICH YAROSLAV S,SU;TERSHAK BOGDAN A,SU;SENYUSHKOVICH NIKOLAJ V,SU;BILETSKIJ YAROSLAV S,SU
分类号
E21B33/16;E21B33/14
主分类号
E21B33/16
代理机构
代理人
主权项
地址
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