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发明名称
SCHLAGWERK
摘要
申请公布号
DE2750603(A1)
申请公布日期
1979.05.17
申请号
DE19772750603
申请日期
1977.11.11
申请人
INSTITUT GORNOGO DELA SIBIRSKOGO OTDELENIJA AKADEMII NAUK SSSR
发明人
D. PETUCHOV,VADIM;A. GAUN,VIKTOR;I. BOBROV,OLEG
分类号
B25D9/16;E21B1/30;E21B4/14;(IPC1-7):E21C3/24
主分类号
B25D9/16
代理机构
代理人
主权项
地址
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