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发明名称
Fish tank aerator
摘要
申请公布号
US2742732(A)
申请公布日期
1956.04.24
申请号
US19520318847
申请日期
1952.11.05
申请人
KUHN HARRY J
发明人
KUHN HARRY J.
分类号
A01K63/04
主分类号
A01K63/04
代理机构
代理人
主权项
地址
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