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发明名称
Swimmer training device
摘要
申请公布号
US3142485(A)
申请公布日期
1964.07.28
申请号
US19620236796
申请日期
1962.11.13
申请人
JACOBSEN ALLEN I
发明人
JACOBSEN ALLEN I.
分类号
A63B69/12
主分类号
A63B69/12
代理机构
代理人
主权项
地址
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