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发明名称
Multi-segment penetration device for making boreholes with small diameter
摘要
申请公布号
PL68798(Y1)
申请公布日期
2016.12.30
申请号
PL20120124317U
申请日期
2012.02.29
申请人
WOJSKOWA AKADEMIA TECHNICZNA IM. JAROSŁAWA DĄBROWSKIEGO
发明人
NIEZGODA TADEUSZ;GIELETA ROMAN;SŁAWIŃSKI GRZEGORZ;BOGUSZ PAWEŁ;GOTOWICKI PIOTR;KICZKO ANDRZEJ;MIEDZIŃSKA DANUTA;KUCERA TOMASZ
分类号
E21B7/18;E21B17/20;E21B47/022
主分类号
E21B7/18
代理机构
代理人
主权项
地址
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