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发明名称
Golf swing indicator
摘要
申请公布号
US2712939(A)
申请公布日期
1955.07.12
申请号
US19530346313
申请日期
1953.04.02
申请人
HARP SIDNEY H
发明人
HARP SIDNEY H.
分类号
A63B57/00;A63B69/36
主分类号
A63B57/00
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代理人
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