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发明名称
Pneumatically operated educational game
摘要
申请公布号
US2128690(A)
申请公布日期
1938.08.30
申请号
US19350012600
申请日期
1935.03.23
申请人
BURKE MINNIE L;BURKE RICHARD J
发明人
BURKE MINNIE L.;BURKE RICHARD J.
分类号
A63F9/00
主分类号
A63F9/00
代理机构
代理人
主权项
地址
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