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发明名称
Boat trailer attachment
摘要
申请公布号
US2515564(A)
申请公布日期
1950.07.18
申请号
US19470776072
申请日期
1947.09.25
申请人
MERCER ERWIN R;MERCER MARY B
发明人
MERCER ERWIN R.;MERCER MARY B.
分类号
B63C13/00
主分类号
B63C13/00
代理机构
代理人
主权项
地址
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