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发明名称
Relief valve
摘要
申请公布号
US2299079(A)
申请公布日期
1942.10.20
申请号
US19390295124
申请日期
1939.09.15
申请人
DAVIS WALWIN L
发明人
DAVIS WALWIN L.
分类号
F16K17/18
主分类号
F16K17/18
代理机构
代理人
主权项
地址
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