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发明名称
Duplex valve
摘要
申请公布号
US1848175(A)
申请公布日期
1932.03.08
申请号
US19290401637
申请日期
1929.10.23
申请人
ANDALE COMPANY
发明人
JENKINS JAMES MARTIN
分类号
F16K11/044
主分类号
F16K11/044
代理机构
代理人
主权项
地址
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