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发明名称
Trailer hitch
摘要
申请公布号
US2187970(A)
申请公布日期
1940.01.23
申请号
US19370144403
申请日期
1937.05.24
申请人
GREER EDWARD R
发明人
GREER EDWARD R.
分类号
B62D53/08
主分类号
B62D53/08
代理机构
代理人
主权项
地址
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