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发明名称
CORE DRILL
摘要
申请公布号
SU1025892(A1)
申请公布日期
1983.06.30
申请号
SU19813276496
申请日期
1981.03.12
申请人
VNII BUROVOJ TEKHNIKI
发明人
POPOV ALEKSANDR N,SU;RYBALKA ANATOLIJ A,SU;VYSOTSKIJ VLADIMIR A,SU;LIBERMAN VLADIMIR I,SU
分类号
E21D1/06;E21B25/00;(IPC1-7):E21D1/06
主分类号
E21D1/06
代理机构
代理人
主权项
地址
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