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发明名称
DEVICE FOR WORKING OUT DRIFTS IN HARD ROCK
摘要
申请公布号
GB2188961(A)
申请公布日期
1987.10.14
申请号
GB19870006859
申请日期
1985.07.30
申请人
* SP K BYURO GIDROIMPULS TEKH;* INST GIDRODINAMIKI SIBIRSKOGO
发明人
* FADEEV PETR YAKOVLEVICH;* FADEEV VLADIMIR YAKOVLEVICH;* KOROBKOV VLADLEN VIKTOROVICH;* KULAGIN RIM ASMANOVICH;* ERMILOV NIKOLAI PETROVICH
分类号
B25D17/28;B25D17/24;E21D9/10;(IPC1-7):E21D9/10;E21C27/28
主分类号
B25D17/28
代理机构
代理人
主权项
地址
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