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发明名称
Temperature responsive ventilator for beehives
摘要
申请公布号
US2574768(A)
申请公布日期
1951.11.13
申请号
US19470757258
申请日期
1947.06.26
申请人
TAYLOR MERRITT I
发明人
TAYLOR MERRITT I.
分类号
A01K47/06
主分类号
A01K47/06
代理机构
代理人
主权项
地址
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