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发明名称
Attachment for trailer boat caster units
摘要
申请公布号
US2455048(A)
申请公布日期
1948.11.30
申请号
US19470752347
申请日期
1947.06.04
申请人
DETROIT ENGINEERING LABORATORIES, INC.
发明人
BRIE STANLEY R. DU
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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