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发明名称
Water aerator for fish containers
摘要
申请公布号
US2628447(A)
申请公布日期
1953.02.17
申请号
US19490129822
申请日期
1949.11.28
申请人
BROWN ROYCE M
发明人
BROWN ROYCE M.
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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