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发明名称
Buoyant underwater viewing device
摘要
申请公布号
GB2165186(A)
申请公布日期
1986.04.09
申请号
GB19840025011
申请日期
1984.10.03
申请人
ALAN * JOHNSON
发明人
ALAN * JOHNSON
分类号
B63C11/48;B63C11/49;(IPC1-7):B63C11/48;B63B35/86
主分类号
B63C11/48
代理机构
代理人
主权项
地址
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