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经营范围
发明名称
Relief valve
摘要
申请公布号
US2520893(A)
申请公布日期
1950.08.29
申请号
US19440526673
申请日期
1944.03.16
申请人
MERIT ENGINEERING, INC.
发明人
STEVENSON ROBERT
分类号
F16K17/10
主分类号
F16K17/10
代理机构
代理人
主权项
地址
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