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发明名称
BASEBALL BAT CHOKE DEVICE
摘要
申请公布号
US3469839(A)
申请公布日期
1969.09.30
申请号
USD3469839
申请日期
1966.09.20
申请人
JOSEPH A. PIETRONUTO;ROBERT SANDS
发明人
JOSEPH A. PIETRONUTO;ROBERT SANDS
分类号
A63B59/06;(IPC1-7):A63B59/06;A63B69/00
主分类号
A63B59/06
代理机构
代理人
主权项
地址
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