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发明名称
Playing racket construction
摘要
申请公布号
US2282418(A)
申请公布日期
1942.05.12
申请号
US19400321704
申请日期
1940.03.01
申请人
HALL HORACE W
发明人
HALL HORACE W.
分类号
A63B49/02
主分类号
A63B49/02
代理机构
代理人
主权项
地址
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