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发明名称
Letter selecting device for use in word building game
摘要
申请公布号
US3226122(A)
申请公布日期
1965.12.28
申请号
US19620176549
申请日期
1962.03.01
申请人
ROGERS FORREST E
发明人
ROGERS FORREST E.
分类号
A63F3/04
主分类号
A63F3/04
代理机构
代理人
主权项
地址
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