发明名称 Retainer for retaining collapsed poles within another pole
摘要 A tool is provided and includes a hook member which is attached to an extendable and retractable pole member, and a retainer which can retain the pole member in a collapsed position. The hook member is used to twist a short portion of a workpiece around a long portion of a workpiece in order to secure the short portion to the long portion when the workpiece is hung from an overhead support member. The retainer retains an inner pole of the pole member within an outer pole of the pole member when the pole member is in a collapsed position.
申请公布号 US2004084915(A1) 申请公布日期 2004.05.06
申请号 US20030694134 申请日期 2003.10.27
申请人 GREENLEE TEXTRON INC. 发明人 MOFFATT WILBUR KEITH
分类号 B21F1/00;B21F15/04;E04C5/16;(IPC1-7):B25J1/00 主分类号 B21F1/00
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