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发明名称
Feather ball
摘要
申请公布号
US2193645(A)
申请公布日期
1940.03.12
申请号
US19380189288
申请日期
1938.02.08
申请人
RAIZEN CHARLES S;MAY WILBUR D
发明人
RAIZEN CHARLES S.;MAY WILBUR D.
分类号
A63B67/18
主分类号
A63B67/18
代理机构
代理人
主权项
地址
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