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发明名称
Trailer
摘要
申请公布号
US2119154(A)
申请公布日期
1938.05.31
申请号
US19370152848
申请日期
1937.07.09
申请人
EDWIN DOWNING CHARLES
发明人
DOWNING CHARLES EDWIN
分类号
B60P3/34
主分类号
B60P3/34
代理机构
代理人
主权项
地址
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