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经营范围
发明名称
CEMENTING HEAD
摘要
申请公布号
SU721520(A1)
申请公布日期
1980.03.15
申请号
SU19782591645
申请日期
1978.03.17
申请人
SEVERO-KAVKAZSKIJ GNI PI NEFTYANOJ PROMYSHLENNOSTI
发明人
MOLOSTOV VALERIJ V,SU;LAPCHENKO ALEKSANDR M,SU;EKIMOV IGOR N,SU;MAMVRIJSKIJ EVGENIJ A,SU;FILIMONOV ALEKSEJ A,SU
分类号
E21B33/05;(IPC1-7):E21B33/05
主分类号
E21B33/05
代理机构
代理人
主权项
地址
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