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经营范围
发明名称
WORKING MEMBER OF AUGER DRILLING MACHINE
摘要
申请公布号
SU744126(A1)
申请公布日期
1980.06.30
申请号
SU19782573385
申请日期
1978.01.31
申请人
INST GORNOGO DELA IM. A.A. SKOCHINSKOGO
发明人
DRANNIKOV SERGEJ A,SU;KRYUCHKOV VLADIMIR V,SU;TIMONIN VLADIMIR ,SU;BUDANCHIKOV LEONID A,SU;BUDANCHIKOV VLADISLAV L,SU
分类号
E21B3/00;E21C27/22;(IPC1-7):E21C1/14
主分类号
E21B3/00
代理机构
代理人
主权项
地址
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