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发明名称
Retractable trailer hitch
摘要
申请公布号
US2889155(A)
申请公布日期
1959.06.02
申请号
US19580737296
申请日期
1958.05.23
申请人
SANDAGE NED R
发明人
SANDAGE NED R.
分类号
B60D1/54
主分类号
B60D1/54
代理机构
代理人
主权项
地址
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