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发明名称
Means facilitating recovering of articles lost in water
摘要
申请公布号
US2892198(A)
申请公布日期
1959.06.30
申请号
US19560557801
申请日期
1956.01.06
申请人
GRUENBERG IVOR J
发明人
GRUENBERG IVOR J.
分类号
B63B22/14
主分类号
B63B22/14
代理机构
代理人
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地址
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