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发明名称
DRILLING MACHINE CHUCK
摘要
申请公布号
SU950891(A1)
申请公布日期
1982.08.15
申请号
SU19813234323
申请日期
1981.01.12
申请人
DO G PK EXI KOMPLEKSNOJ MEKH SHAKHT "DONGIPROUGLEMASH"
发明人
KUCHER VLADIMIR I,SU;MARTYANOV YURIJ A,SU;BARANOV OLEG N,SU
分类号
E21B17/03;E21B3/02;(IPC1-7):E21B3/02;E21C1/00;E21C3/34
主分类号
E21B17/03
代理机构
代理人
主权项
地址
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