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经营范围
发明名称
Brooder ventilation structure
摘要
申请公布号
US1823584(A)
申请公布日期
1931.09.15
申请号
US19300495163
申请日期
1930.11.12
申请人
BARKER POULTRY EQUIPMENT COMPANY
发明人
BRUCE ALBERT W.
分类号
A01K31/18
主分类号
A01K31/18
代理机构
代理人
主权项
地址
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