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经营范围
发明名称
CEMENTING COLLAR
摘要
申请公布号
SU1618868(A1)
申请公布日期
1991.01.07
申请号
SU19874316452
申请日期
1987.10.15
申请人
IVANO-FRANKOVDZKIYI INDZTITUT NEFTI GAZA
发明人
YIADZOV VITALIYI G,SU;VELZ RAVEL DZ,SU;MUDZLYIUK MIKNAIL A,SU;ANIDZKOVTDZEV ALEKDZANDR V,SU;GOLOVATUYI TARADZ G,SU
分类号
E21B33/14
主分类号
E21B33/14
代理机构
代理人
主权项
地址
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