发明名称 Hitch ball hole.
摘要 The Hitch Ball Hole is intended to provide added security from theft of existing hitch balls. An appropriate-size hole will be drilled, machined, or bored completely through the threaded portion of the shank to allow a padlock or similar locking mechanism be attached to prevent the nut securing the hitch ball from being unbolted.
申请公布号 US2008272574(A1) 申请公布日期 2008.11.06
申请号 US20060420465 申请日期 2006.05.25
申请人 STUART DAVID 发明人 STUART DAVID
分类号 B60D1/06 主分类号 B60D1/06
代理机构 代理人
主权项
地址