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发明名称
Trailer level
摘要
A trailer tongue arrangement is provided having a power jack. The power jack is removably engaged with the tongue and includes a circular level unit thereon which indicates a level condition in the front-to-back and side-to-side directions.
申请公布号
US6840541(B2)
申请公布日期
2005.01.11
申请号
US20020330942
申请日期
2002.12.27
申请人
BARKER MANUFACTURING CO.
发明人
WALTERS DUANE
分类号
B60D1/66;B60S9/08;(IPC1-7):B60S9/08
主分类号
B60D1/66
代理机构
代理人
主权项
地址
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