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经营范围
发明名称
ARRANGEMENT FOR FORMING A PORT IN CASTING STRING
摘要
申请公布号
SU1157202(A1)
申请公布日期
1985.05.23
申请号
SU19833533822
申请日期
1983.01.06
申请人
VNI PK I PO VZRYVNYM METODAM GEOFIZICHESKOJ RAZVEDKI
发明人
ZOLIN MIKHAIL L,SU;VOLNITSKIJ PETR V,SU;ARTEMENKO TAMARA V,SU;AFANASEV DMITRIJ E,SU;URYUPIN VYACHESLAV A,SU;GORBUNOV NIKOLAJ F,SU
分类号
E21B7/06;E21B43/117;(IPC1-7):E21B7/06
主分类号
E21B7/06
代理机构
代理人
主权项
地址
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