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经营范围
发明名称
Dual relief valve
摘要
申请公布号
US2256365(A)
申请公布日期
1941.09.16
申请号
US19410390875
申请日期
1941.04.29
申请人
FOSTER ENGINEERING CO.
发明人
WENTWORTH HARRY T.
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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