发明名称 NARROW TRENCHES DRILLING SYSTEM IN HYDRAULIC OR ASPHALTIC.
摘要 CONCRETE IN STREETS FOR THE UNDERGROUND CABLE INSTALLATION AND REFILL METHOD The present invention provides an apparatus and a system to drill narrower trenches than the ones currently made, in concrete, hydraulic or asphaltic pavements in streets and/or sidewalks, for the installation of cables and its refill method.
申请公布号 MXPA01006836(A) 申请公布日期 2003.01.23
申请号 MX2001PA06836 申请日期 2001.07.04
申请人 FERNANDO GUERRERO PESQUEIRA. 发明人 FERNANDO GUERRERO PESQUEIRA.
分类号 B28D1/14;H02G9/00;(IPC1-7):B28D1/14 主分类号 B28D1/14
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