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发明名称
Check valve
摘要
申请公布号
US2239405(A)
申请公布日期
1941.04.22
申请号
US19390269122
申请日期
1939.04.21
申请人
INGERSOLL-RAND COMPANY
发明人
STENGER AUGUST M.
分类号
F16K15/02
主分类号
F16K15/02
代理机构
代理人
主权项
地址
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