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发明名称
Trailer coupler
摘要
申请公布号
US1745136(A)
申请公布日期
1930.01.28
申请号
US19280279358
申请日期
1928.05.21
申请人
WILLIAMS HUBERT P
发明人
WILLIAMS HUBERT P.
分类号
B60D1/04
主分类号
B60D1/04
代理机构
代理人
主权项
地址
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