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发明名称
SIGNALLING AND INDEXING DEVICE
摘要
申请公布号
SU1154444(A1)
申请公布日期
1985.05.07
申请号
SU19833681547
申请日期
1983.12.30
申请人
ZABAJKALSKIJ KOMPLEKSNYJ NI INSTITUT
发明人
GOLUBIN STANISLAV V,SU;KOSTIN YURIJ S,SU;OMELYANENKO SERGEJ A,SU;MERZHEEVSKIJ ALEKSEJ B,SU
分类号
E21B47/02;(IPC1-7):E21B47/02
主分类号
E21B47/02
代理机构
代理人
主权项
地址
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