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发明名称
ARRANGEMENT FOR MAKING HOLES
摘要
申请公布号
SU708014(A1)
申请公布日期
1980.01.05
申请号
SU19772523527
申请日期
1977.09.02
申请人
GRUZINSKIJ POLT I IM. V.I.LENINA
发明人
TOPURIYA SHALVA KH,SU;MAGRADZE VAKHTANG T,SU;KIKNADZE NODAR A,SU;SHENGELIYA DZHUMBER B,SU;DZHEDZHELAVA YASON S,SU
分类号
E21B7/28;E21B10/26;(IPC1-7):E02D17/14
主分类号
E21B7/28
代理机构
代理人
主权项
地址
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