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发明名称
Check valve
摘要
申请公布号
US2877793(A)
申请公布日期
1959.03.17
申请号
US19570649055
申请日期
1957.03.28
申请人
POMMIER LEONEL J
发明人
POMMIER LEONEL J.
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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