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发明名称
Watering tank heating unit
摘要
申请公布号
US2951477(A)
申请公布日期
1960.09.06
申请号
US19580727138
申请日期
1958.04.08
申请人
ROY HARPER
发明人
HARPER ROY
分类号
A01K7/02;F24H1/20
主分类号
A01K7/02
代理机构
代理人
主权项
地址
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