发明名称 Mineral winning pick, pick holder, and combination
摘要 Releasable or replaceable picks or teeth for a mining or boring drill head, bit or drum are described. The tooth or cutting tool (108) includes a shank or axle (126) for attaching to a recess or holder (112) of a drilling machine. The tooth bears against the holder at bearing surfaces (152).
申请公布号 NZ627813(A) 申请公布日期 2016.08.26
申请号 NZ20140627813 申请日期 2014.06.18
申请人 ESCO CORPORATION 发明人 TORRES DELGADO ROBERTO DE JESUS;CLAPHAM WILLIAM STEPHEN
分类号 E21C35/18;E02F9/28;E21C35/19 主分类号 E21C35/18
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