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发明名称
Portable and collapsible pole vaulting and high jumping pit
摘要
申请公布号
US2588722(A)
申请公布日期
1952.03.11
申请号
US19490118491
申请日期
1949.09.29
申请人
HENDERSHOTT ROBERT W
发明人
HENDERSHOTT ROBERT W.
分类号
A63B6/02
主分类号
A63B6/02
代理机构
代理人
主权项
地址
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