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发明名称
PNEUMATIC PERCUSSIVE MECHANISM FOR DRILLING HOLES
摘要
申请公布号
SU1105632(A1)
申请公布日期
1984.07.30
申请号
SU19833553796
申请日期
1983.02.07
申请人
SP KT BYURO I GEOTEKHNICHESKOJ MEKHANIKI AN USSR
发明人
TROKHIMETS NIKOLAJ YA,SU;KHALETSKIJ ALEKSANDR G,SU
分类号
E21B4/14;(IPC1-7):E21C3/24
主分类号
E21B4/14
代理机构
代理人
主权项
地址
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