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发明名称
VIBRATION FEED MECHANISM
摘要
申请公布号
SU1133389(A1)
申请公布日期
1985.01.07
申请号
SU19833585004
申请日期
1983.04.28
申请人
VNII NERUDNYKH STROITELNYKH MATERIALOV GIDROMEKHANIZATSII
发明人
RACHINSKIJ ALEKSANDR B,SU
分类号
E21B44/08;(IPC1-7):E21C5/14
主分类号
E21B44/08
代理机构
代理人
主权项
地址
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