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发明名称
Basketball backstop
摘要
申请公布号
US2144148(A)
申请公布日期
1939.01.17
申请号
US19380183117
申请日期
1938.01.03
申请人
J. E. PORTER CORPORATION
发明人
GROSS ELMER J.
分类号
A63B63/08;A63B71/02
主分类号
A63B63/08
代理机构
代理人
主权项
地址
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