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发明名称
DRILLING CARRIAGE CHUCK
摘要
申请公布号
SU968367(A1)
申请公布日期
1982.10.23
申请号
SU19803221517
申请日期
1980.12.18
申请人
INST GORNOGO DELA SO AN SSSR
发明人
ZAKABLUKOVSKIJ NIKODIM G,SU;PETUKHOV VADIM D,SU;MUKHIN ZHORES G,SU;BOBROV OLEG I,SU
分类号
E21B19/10;E21B3/02;(IPC1-7):E21C1/00
主分类号
E21B19/10
代理机构
代理人
主权项
地址
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