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发明名称
Air lock device
摘要
申请公布号
US2845191(A)
申请公布日期
1958.07.29
申请号
US19570638417
申请日期
1957.02.05
申请人
LEVER BROTHERS COMPANY
发明人
MCDERMOTT FRANKLIN
分类号
B65B31/02
主分类号
B65B31/02
代理机构
代理人
主权项
地址
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