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发明名称
DEVICE FOR DRILLING FOUNDATIONPIT LARGE HOLES
摘要
申请公布号
SU570672(A1)
申请公布日期
1977.08.30
申请号
SU19752184937
申请日期
1975.10.27
申请人
MO GEOLOGORAZVEDOCHNYJ I IM. S.ORDZHONIKIDZE
发明人
BRYLOV SERGEJ A,SU;GRABCHAK LEONID G,SU
分类号
(IPC1-7):E02D17/14;E21C19/00
主分类号
(IPC1-7):E02D17/14
代理机构
代理人
主权项
地址
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