发明名称 SAFETY JACK
摘要 <p>The present invention is a safety jack (10) having a propping mechanism comprised of a prop (40) attached to and jointly movable with the lifting arm (14), a storage well (22) for receiving the prop (40) in a retracted position, and a pin (50) engagable with the prop (40) to bias the prop (40) and the body (12) of the jack (10) to prevent untimely retraction of lifting arm (14).</p>
申请公布号 WO2005051707(A1) 申请公布日期 2005.06.09
申请号 WO2004US39109 申请日期 2004.11.19
申请人 SPENCER, CHRISTERSON, ABRAHAM 发明人 SPENCER, CHRISTERSON, ABRAHAM
分类号 B66F3/30;(IPC1-7):B60P1/48;B66F3/24;B66F7/12;B60P1/00 主分类号 B66F3/30
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