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发明名称
Multiple puzzle devices
摘要
申请公布号
US2836421(A)
申请公布日期
1958.05.27
申请号
US19540476173
申请日期
1954.12.20
申请人
TURNER WILLIAM D
发明人
TURNER WILLIAM D.
分类号
A63F9/12
主分类号
A63F9/12
代理机构
代理人
主权项
地址
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