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发明名称
WORKING-FACE CONNECTION
摘要
申请公布号
SU587243(A1)
申请公布日期
1978.01.05
申请号
SU19752157473
申请日期
1975.07.18
申请人
V NEFTEGAZOVYJ NI INSTITUT
发明人
DOTSENKO VLADIMIR A,SU;KUZMIN VITALIJ M,SU;VOROBEV VLADIMIR D,SU
分类号
E21B43/12;(IPC1-7):E21B43/12
主分类号
E21B43/12
代理机构
代理人
主权项
地址
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