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发明名称
Flexible fins for swimmers
摘要
申请公布号
US3407419(A)
申请公布日期
1968.10.29
申请号
US19670609565
申请日期
1967.01.16
申请人
CHARLES A. DRUMMOND
发明人
DRUMMOND CHARLES A.
分类号
A63B31/14
主分类号
A63B31/14
代理机构
代理人
主权项
地址
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