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发明名称
Automatic check valve
摘要
申请公布号
US3118467(A)
申请公布日期
1964.01.21
申请号
US19610091284
申请日期
1961.02.23
申请人
JOHN KUHN
发明人
KUHN JOHN
分类号
F16K15/00
主分类号
F16K15/00
代理机构
代理人
主权项
地址
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