公开/公告号FI71184C
专利类型
公开/公告日1986-11-24
原文格式PDF
申请/专利权人 PROIZ GEOL OBIED TSENTR RAIONOV TSENTRGEOLOGIA;PROIZ GEOL OBIED SEV ZAP RAIONOV SEVZAPGEOLOGIA;
申请/专利号FI19810000821
发明设计人 YAKOVLEV ARIAN MIKHAILOVICH;PYAKKONEN BORIS JURIEVICH;TATEVOSYAN RUBEN ARMENOVICH;LIPATOV NIKOLAI KONSTANTINOVICH;PATRUSHEV GENNADY VASILIEVICH;TERESCHENKO LEV ALEXANDROVICH;
申请日1981-03-17
分类号E21B33/13;
国家 FI
入库时间 2022-08-22 07:20:48