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发明名称
Device for the automatic throwing of balls for training for certain sports
摘要
申请公布号
US3128753(A)
申请公布日期
1964.04.14
申请号
US19610162346
申请日期
1961.12.27
申请人
JIM POLITZER EUGENE
发明人
POLITZER EUGENE JIM
分类号
A63B69/40
主分类号
A63B69/40
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