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发明名称
Movable block puzzle
摘要
申请公布号
US1879571(A)
申请公布日期
1932.09.27
申请号
US19310553519
申请日期
1931.07.28
申请人
SPAULDING HARRIS W
发明人
SPAULDING HARRIS W.
分类号
A63F9/08
主分类号
A63F9/08
代理机构
代理人
主权项
地址
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