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发明名称
Race track
摘要
申请公布号
US2334656(A)
申请公布日期
1943.11.16
申请号
US19420434229
申请日期
1942.03.11
申请人
THOMAS FRANK E
发明人
THOMAS FRANK E.
分类号
A63F9/14
主分类号
A63F9/14
代理机构
代理人
主权项
地址
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