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经营范围
发明名称
EXPANDING TOOL
摘要
申请公布号
SU1502792(A1)
申请公布日期
1989.08.23
申请号
SU19874231777
申请日期
1987.04.17
申请人
VNII GIDROGEOLOGII INZHENERNOJ GEOLOGII
发明人
BASHKATOV ALEKSEJ D,SU;AVSYUK ALEKSANDR I,SU;DAVYDOV YURIJ P,SU;LASYGINA VALENTINA V,SU;OZHERELEV PETR E,SU;BARSKIJ ALEKSANDR M,SU;ALBOROV ANATOLIJ I,SU;TARABUKIN VALERIJ I,SU
分类号
E21B7/28
主分类号
E21B7/28
代理机构
代理人
主权项
地址
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