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发明名称
Toy roundabout
摘要
申请公布号
US2521620(A)
申请公布日期
1950.09.05
申请号
US19460649839
申请日期
1946.02.25
申请人
WEST WILLIAM L;FRANK WEST JAMES
发明人
WEST WILLIAM L.;WEST JAMES FRANK
分类号
A63H27/04
主分类号
A63H27/04
代理机构
代理人
主权项
地址
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