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经营范围
发明名称
DRILLING MACHINE
摘要
申请公布号
SU1357563(A1)
申请公布日期
1987.12.07
申请号
SU19854019229
申请日期
1985.12.24
申请人
FRUNZENSKIJ POLT INSTITUT
发明人
DVORNIKOV LEONID T,SU;PONOMAREV ALEKSEJ YA,SU
分类号
E21B3/00;E21B44/00
主分类号
E21B3/00
代理机构
代理人
主权项
地址
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