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经营范围
发明名称
Relief valve
摘要
申请公布号
US2928413(A)
申请公布日期
1960.03.15
申请号
US19540463568
申请日期
1954.10.20
申请人
BLACK, SIVALLS & BRYSON, INC.
发明人
HANSEN FRANKLIN A.
分类号
F16K17/19
主分类号
F16K17/19
代理机构
代理人
主权项
地址
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