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发明名称
DEVICE FOR MONITORING THE TRAVEL OF DRAW ROPE
摘要
申请公布号
SU1258993(A1)
申请公布日期
1986.09.23
申请号
SU19853875203
申请日期
1985.03.12
申请人
YUZHNOE OTDEL VNII GEOFIZICHESKIKH METODOV RAZVEDKI
发明人
KRAJZMAN LEONID F,SU;STEPANYAN VLADIMIR A,SU
分类号
E21B47/00;G01B7/04
主分类号
E21B47/00
代理机构
代理人
主权项
地址
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