发明名称 Elongate receiver tube and method of making the same
摘要 A receiver tube for a trailer hitch assembly including a hollow metal tube stock wherein the receiving end thereof is provided with a cold formed reinforcing flange formed of the outermost end of the tube stock is folded upon itself.
申请公布号 US2004075245(A1) 申请公布日期 2004.04.22
申请号 US20030666173 申请日期 2003.09.19
申请人 PALMER DAVID H. 发明人 PALMER DAVID H.
分类号 B60D1/14;(IPC1-7):B60D1/00 主分类号 B60D1/14
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