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发明名称
ORIENTATION AID FOR USE WHEN SWIMMING ON THE BACK
摘要
申请公布号
EP0720498(A1)
申请公布日期
1996.07.10
申请号
EP19940917043
申请日期
1994.05.20
申请人
BERNARD, ANDRE
发明人
BERNARD, ANDRE
分类号
A63B33/00;B63C11/02;B63C11/20;(IPC1-7):A63B33/00;B63C11/16
主分类号
A63B33/00
代理机构
代理人
主权项
地址
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