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发明名称
Vacuum actuated door control for milking barns
摘要
申请公布号
US2671428(A)
申请公布日期
1954.03.09
申请号
US19500171838
申请日期
1950.07.03
申请人
HILL HENRY H
发明人
HILL HENRY H.
分类号
A01K1/00;E05F15/06
主分类号
A01K1/00
代理机构
代理人
主权项
地址
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