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发明名称
DRILLING RIG RECEIVING PLATFORM
摘要
申请公布号
SU1643698(A1)
申请公布日期
1991.04.23
申请号
SU19894675953
申请日期
1989.04.11
申请人
SEMISOTNOV GENNADIJ F,SU;KRISHCHENKO ANATOLIJ M,SU
发明人
SEMISOTNOV GENNADIJ F,SU;KRISHCHENKO ANATOLIJ M,SU
分类号
E21B19/14;E21B15/00
主分类号
E21B19/14
代理机构
代理人
主权项
地址
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