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发明名称
Means for assessing the eggproductivity of poultry
摘要
申请公布号
US2679825(A)
申请公布日期
1954.06.01
申请号
US19520278197
申请日期
1952.03.24
申请人
JOHN HAZELTINE
发明人
HAZELTINE JOHN
分类号
A01K31/16
主分类号
A01K31/16
代理机构
代理人
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地址
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