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发明名称
Ball throwing device
摘要
申请公布号
US3092093(A)
申请公布日期
1963.06.04
申请号
US19610134211
申请日期
1961.08.28
申请人
FLOYD DAVIS
发明人
DAVIS FLOYD
分类号
A63B69/40
主分类号
A63B69/40
代理机构
代理人
主权项
地址
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