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发明名称
ABOVE-BIT HYDRAULIC ELEVATOR
摘要
申请公布号
SU1276799(A1)
申请公布日期
1986.12.15
申请号
SU19853904468
申请日期
1985.03.05
申请人
VNI PK I GEOFIZICHESKIKH ISSLEDOVANIJ GEOLOGORAZVEDOCHNYKH SKVAZHIN
发明人
SPIVAK ALEKSANDR I,SU;SKVORTSOV YURIJ P,SU;SYROMYATNIKOV ANATOLIJ N,SU;MOLCHANOV ANATOLIJ A,SU;IPPOLITOV VYACHESLAV V,SU
分类号
E21B21/00
主分类号
E21B21/00
代理机构
代理人
主权项
地址
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