发明名称 INSULATING COMPOSITE SHAFT TOOL WITH INTERCHANGEABLE HEADS AND METHODS OF CONSTRUCTION THEREOF
摘要 <p>An electrically insulating hand tool (10) is comprised of a two-piece shaft formed by a tube (11) and a rod received by the tube, a handle (13) connected to the rod, an insert (14) received in an end of the tube opposite the rod, and a work engaging (15) head detachably coupled to the insert. The tube and the rod are formed of an electrically insulating non-metallic composite material.</p>
申请公布号 WO2002009913(A1) 申请公布日期 2002.02.07
申请号 US2001022158 申请日期 2001.07.13
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